Question

Norma finished her math assignment in 1/3 hours. Then she completed her chemistry assignment in 1/8 hours. What was the total amount of time Norma spent doing these two assignments?

Answer 1

Total amount of time: $t=\frac{1}{3}+\frac{1}{8}=\frac{8}{24}+\frac{3}{24}=\frac{11}{24}\;hrs\;=27.5\;min.$