Question

Please help me somebody! <3

Answer 1

Answer: 85 m + 20

Explanation:

Make fractions have same, common denominator. LCD = 40

7/8 = 35/40

9/10 = 36/40

2/5 = 16/40

3/1 = 120 / 40

`(35)/(40)m+(36)/(40)-(120)/(40)m - (16)/(40)`

35m + 36 - 120m - 16

85 m + 20