When I find one fifth of a number, I have 5. What number is my whole?

Mohammed has one quarter of £20. Sarah has one half of £12. Who has more?

I start with my whole number. When I find one third I have 4. When I find one quarter I have 3. What number have I started with?

Key Stage 2

To find unit fractions of a given quantity

the number of equal parts the whole is divided into

the number of unequal parts the whole is divided into

above the vinculum and tells us how many equal parts of the whole is divided into

always 1 in a unit fraction and tells us how many equal parts of the whole we have

below the vinculum and tells use how many equal parts the whole is divided into