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Real World Maths Adventures

The moon-base fractions question prompts

Adult prompts and extension questions for share oxygen, food and power into equal parts.

Quick answer

Share oxygen, food and power equally among astronauts on a moon base using fractions.

Learning outcome

By the end of this page, you will be able to share equal parts of resources like oxygen, food, and power among astronauts using fractions. Success signs:
  • You can split a resource into equal parts
  • You can explain what each part means using words like "half", "quarter", "third"
  • You can share 12 cookies between 4 astronauts and say how many each gets
  • You can draw a picture to show how to share 8 apples between 2 astronauts

Why this matters

Fractions help us share things fairly. On a moon base, astronauts need to make sure everyone gets the same amount of oxygen, food, and power. If they don't share properly, someone might not have enough to survive! Fractions are also used in cooking, sports, games, and even sharing your lunch with friends. Learning to share fairly helps you understand how numbers work in the real world.

How it works

To share something using fractions:
  1. Decide how many people or parts you are sharing with
  2. Split the whole resource into that many equal parts
  3. Each part is one fraction of the whole
  4. Count how many parts each person gets

Examples you can see

Let's imagine a moon base with 6 astronauts. They have 12 bottles of oxygen. Example 1: Share 12 bottles between 6 astronauts
  • Each astronaut gets 12 ÷ 6 = 2 bottles
  • Each bottle is 1/6 of the total
  • 2 bottles = 2/6 of the total
Example 2: Share 18 sandwiches between 3 astronauts
  • Each astronaut gets 18 ÷ 3 = 6 sandwiches
  • Each sandwich is 1/3 of the total
  • 6 sandwiches = 6/3 = 2 whole sandwiches per astronaut
Example 3: Share 24 units of power between 4 astronauts
  • Each astronaut gets 24 ÷ 4 = 6 units
  • Each unit is 1/4 of the total
  • 6 units = 6/4 = 1½ units per astronaut

Try it as a mini adventure

The Moon Base Mission You are an astronaut on a moon base with 5 other astronauts. You have just received a delivery of supplies:
  • 20 bottles of water
  • 15 sandwiches
  • 12 solar panels
Your mission is to share these equally among all 6 astronauts. Step 1: Share 20 bottles of water
  • Each astronaut gets 20 ÷ 6 = 3 remainder 2
  • Each gets 3 full bottles
  • 2 bottles are left over
Step 2: Share 15 sandwiches
  • Each astronaut gets 15 ÷ 6 = 2 remainder 3
  • Each gets 2 full sandwiches
  • 3 sandwiches are left over
Step 3: Share 12 solar panels
  • Each astronaut gets 12 ÷ 6 = 2 solar panels
  • Each gets 2 solar panels
Step 4: What fraction of the total supplies does each astronaut get?
  • Water: 3/20 of total bottles
  • Sandwiches: 2/15 of total sandwiches
  • Solar panels: 2/12 = 1/6 of total panels

Common mistakes

  • Mistake: Not making equal parts when sharing
    Why it happens: Children might not understand that all parts must be the same size.
    Fix: Use physical objects or draw lines to make sure each part is exactly the same.
  • Mistake: Thinking 1/2 means one of two things
    Why it happens: Children confuse "half" with "one" or "two".
    Fix: Show that 1/2 means one of two equal parts, not just "one" or "two".
  • Mistake: Counting parts wrong when sharing
    Why it happens: Children might miscount or lose track.
    Fix: Use fingers, counters, or drawings to keep track of each part.
  • Mistake: Thinking fractions only work with whole numbers
    Why it happens: Children might think you can't have 1½ or 2¼.
    Fix: Show that fractions can be more than 1 when sharing more than one whole.

Parent and carer guide

To help your child learn about sharing resources using fractions:
  1. Use real objects like toys, snacks, or blocks to show sharing
  2. Ask questions like "How many pieces do we need if we share this between 3 people?"
  3. Draw pictures to show how things are shared
  4. Play sharing games like "Share 12 cookies between 4 friends"
  5. Notice when fractions appear in daily life - like splitting a pizza or sharing a bag of sweets
  6. Encourage your child to explain their thinking
  7. Don't worry if they make mistakes - that's how they learn!
  8. Keep it fun and practical - use their interests like games or cooking

Practice questions

  1. Share 12 apples between 3 astronauts. How many does each get?
  2. Share 18 sandwiches between 6 astronauts. How many does each get?
  3. Share 24 batteries between 4 astronauts. How many does each get?
  4. Share 15 cups of coffee between 5 astronauts. How many does each get?
  5. Share 20 units of power between 10 astronauts. How many does each get?
Answers:
  1. 12 ÷ 3 = 4 apples each
  2. 18 ÷ 6 = 3 sandwiches each
  3. 24 ÷ 4 = 6 batteries each
  4. 15 ÷ 5 = 3 cups each
  5. 20 ÷ 10 = 2 units each

FAQ

What are fractions?

Fractions show parts of a whole. For example, if you split a pizza into 4 equal pieces, each piece is 1/4 of the pizza.

How do I know if parts are equal?

Equal parts must be the same size. You can check by measuring or comparing them side by side.

Why do we need to share fairly using fractions?

Fair sharing makes sure everyone gets the same amount, which is important for survival on a moon base or for fairness in everyday life.

Can fractions be more than one?

Yes! If you have 5 cookies and 2 people, each gets 2½ cookies, which is 2½/1 or 5/2 as a fraction.

How can I practice fractions at home?

Share snacks, divide up toys, or split up time for different activities. Every day is a chance to practice fractions!