Question

1. Mikey worked on her mathematics homework for 3/4 hour and her science
homework for 7/8 hour. How long did she spend in all doing homework?​

Answer 1

3/4 + 7/8
= 2*3 /8 + 7/8
= 6/8 + 7/8
= 13/8
= 1 5/8 hrs

Answer 2

Answer:

$\frac{13}{8}$

Step-by-step explanation:

Since the question is asked as the total time spent in both the subjects, you'll get the answer if you add the given numbers.

$\frac{3}{4} + \frac{7}{8}$

LCM of 4 and 8 = 8

$\\ \frac{6}{8} + \frac{7}{8} \\ \\ = \frac{13}{8}$

Therefore the time spent in doing all the homework = 13/8 hours

I'm not sure with this answer, please do check with the other answers also.

THANK YOU