Question

efetue as adições e subtrações:
a)1/2+1/3=
b)3/14+3/7=
c)7/1+1/7=
d)3/5+3/4+1/2=
e)1/12+5/6+3+4=
f)4/3+2/1+5/6=
g)5/6-2/3=
h)4/5-1/4=
i)9/1-1/2=
j)7/1-2/3=

Answer 1

a)1/2+1/3
3/6+2/6
5/6

b)3/14+3/7
3/14+6/14
9/14

c)7/1+1/7
49/7+1/7
50/7

d)3/5+3/4+1/2
12/20+15/20+10/20
37/20

e)1/12+5/6+3+4
1/12+10/12+36/12+48/12
95/12

f)4/3+2/1+5/6
8/6+12/6+5/6
25/6

g)5/6-2/3
5/6-4/6
1/6

h)4/5-1/4
16/20-5/20
11/20

i)9/1-1/2
18/2-1/2
17/2

j)7/1-2/3
21/3-2/3
19/3