Question

Me ajudem nessa pfvr​

Answer 1

A)

(1/2) + (-2/3)

3/6 + (-4/6)

-1/6

B)

(-1/3) - (5/6)

(-2/6)-(5/6)

7/6

C)

1/9 - (-7/3)

1/9 -(-21/9)

22/9

D)

4/3 - (-3/4)

16/12 - (-9/12)

25/12