Isabel eats 4/9 of a pie. Kofi eats 1/9 of the same pie. What fraction of the pie is left?

1 answer

To find out how much of the pie is left, we need to subtract the fractions eaten by Isabel and Kofi from the total pie.

Isabel ate 4/9 of the pie and Kofi ate 1/9 of the pie.

Total eaten = 4/9 + 1/9 = 5/9

To find out what fraction of the pie is left, we subtract the total eaten fraction from 1 (whole pie).

1 - 5/9 = 9/9 - 5/9 = 4/9

So, 4/9 of the pie is left after Isabel and Kofi have eaten their portions.