Question

Jenny's mom says she has an hour before it's bedtime Jenny spends 1/3 of the hour texting a friend and 1/4 of the time brushing her teeth and putting on pajamas she spends the rest of her time reading her book how many minutes did Jenny read?

Answer 1

Multiply the fractions by the others bottom half, both the top and bottom.

1/3 will be multiplied by 4, and 1/4 will be multiplied by 3

1/3 will be 4/12 and 1/4 will be 3/12

Add 4/12 and 3/12 together to get 7/12

The remaining time, 5/12, is the amount of time she spent reading.