Question

alguem pode me ajudar?

Answer 1

7 + 5/6  = 42/6 + 5/6 = 47/6 **
b
4 - 3/4  = 16/4 - 3/4 = 13/4 ***
c
2 + 1/5  = 10/5 + 1/5= 11/5
11/5 + 3/5 = 14/5 ***
segundo modo
1/5 + 3/5 = 4/5
2 + 4/5 = 10/5 + 4/5 = 14/5 **
d
1 + 5/3 = 3/3 + 5/3 = 8/3
8/3 - 7/3 = 1/3 ****