Question

It took Mary Lou 5/6 hour to write a report for English class. It took Heather 9/10 as much time to write her report as it took Mary Lou. Who took longer?

Answer 1

the one who took longer in this question is mary lou

Answer 2

So, Mary Lou took$\frac{5}{6}$ of an hour, that is $\frac{5}{6}*60 mins=50 mins$

Heather took $\frac{9}{10}$ as much time as Mary Lou, so she took $\frac{9}{10}$ of 50 minutes, that is $\frac{9}{10}*50=45$

45 minutes is less than 50, so Heather was faster and Mary Lou was slower and took longer!