Question

calcule

-5/6 + 3/4
-1/12 - 3/8
+7/9 - 2/3
-2/5 +2
7/3 - 3
-3/10 -1/6

Answer 1

a) -5/6+3/4
mmc=12 -10+9/12= -1/12 resposta

b) mmc=24
-2-9/24= -11/24

c)mmc=9
1-3/9= -2/9

d) mmc=5
-1+10/5= 9/5

e)mmc=3
7-9/3= -2/3

f) mmc=30

-9-5/30= -14/30