Question

2. It took Tristan 2 1/4 hours to do a biome report. It took Yajaira 1 2/3 hours to do her biome report. a. How much longer did it take Tristan to do his report?

Answer 1

It took Tristan 2 1/4 hours to do a biome report. It took Yajaira 1 2/3 hours to do her biome report. a. How much longer did it take Tristan to do his report?​

Find the difference

so

2 1/4-1 2/3

Convert mixed numbers to an improper fractions

2 1/4=2+1/4=9/4

1 2/3=1+2/3=5/3

substitute

9/4-5/3=(3*9-4*5)/12=7/12

answer is 7/12 hours