Question

Faça as contas disso por favor para amanhã

Answer 1

a) 3/4+5/6-1/2
     9/12+10/12-6/12
19/12-6/12=19/12-6/12=13/12
B)2+1/2-3/4=
    8/4+2/4-3/4
   8+2-3/4
   10-3/4
    7/4

C)7/8+2/15-1/6=
105/120+16/120-20/120

121/120 - 20/120
101/120

D)3-(5/6+3/6)
    3-8/6
 18/6-8/6=
10/6= simplifique por 2
5/3
   
E)7/8+(10/5-7/5)=
7/8+3/5
5.7/40+ 3.8/40=
35/40+24/40
59/40
F) 2/3-(3/6+2/6)
2/3- 5/6
4/6-5/6=-1/6