Question

Rufus eats 1/4 cup of dog food three times a day. How many cups of food does he eat in 7 days?

Answer 1

Therefore one day = 1/4 x 3
= 3/4
7 days = 3/4 x 7
=21/4
= 5 1/4

Therefore he will eat 5 and 1/4 cups of food I week

Answer 2

For one day he eats 3/4 cup of doog foods. For 7 days he eats 5 cup and 1/4 cup of food.

1/4×3=(1×3)/4=3/4
3/4×7=(3×7)/4=21/4
21/4=5 1/4.