Question

simplify 3 by 5 + 4 by 7

Answer 1

3/5+4/7
LCM of 5,7=35
(3+4)/35
7/35
1/5

Answer 2

31/5 is the answer

first step

LCM of 3,7=21

LCM of 5,7= 35

21/35

second step

LCM of 2,5=10

LCM of 7,5 = 35

10/35

third step

21/35+10/35= 31/35

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