Question

Responda as operações o resultado na forma irredutível;
a)-1/3+4/3 g)1 3/5-8/12
b) +3/4 + 2/8 h) -10-2/9
c) +2/7- 1/3
d)4-(-1,6)
e)-1,8-4/10
f)-7/10-4/5

Answer 1

Olá
a)
-1/3+43 =
+3/3 =
1
b)
+3/4+2/8= mmc de 4,8=8
+6/8+2/8=
+8/8=
1
c)
+2/7-1/3= mmc 7,3=21
+6/21-7/21=
-1/21
d)
4-(-1,6) =
4/1+16/10:2=
4/1+8/5=mmc 1,5=5
20/5+8/5=
28/5
e)
-1,8-4/10=
-18/10:2 - 4/10:2=
- 9/5-2/5=
- 11/5
f)
 -7/10-4/5=mmc de 10 e 5=10
-7/10-8/10=
-15/10:5=
- 3/2
g)
1 3/5-8/12=
8/5-8/12=mmc de 5 e 12 =60
96/60-40/60
56/60:4
14/15
h)
-10-2/9=
-10/1-2/9=mmc de 1 e 9= 9
-90/9-2/9=
- 92/9
Espero ter ajudado.