Question

Three people share 4/5 of a lasagna. What fraction of the lasagna does each person eat?

Answer 1

4/15

1) Since 3 people share 4/5 of a lasagna we can write:

$\frac{\frac{4}{5}}{3}=\frac{4}{5}\times\frac{1}{3}=\frac{4}{15}$

Remember that when dividing a fraction we must multiply the dividend (4/5) by the reciprocate of the divisor (3).

2) So each one ate 4/15 of a whole lasagna.