Question

calcule as frações
2/7 + 10/7=
5/6 + 2/3 =

​

Answer 1

Resposta:

a) 12/7

b)MMC(9,3)=9

41/9-2/3=41-6/9= 35/9

c)11/2+2/3

mmc(2,3)=6

3.11+2.2/6= 33+4/6= 37/6

d)MMC(3,4)=12

4.5-3.3/12= 20-9/12= 11/12

e)MMC(5,10)=10

10.5+2.3+8/10

50+6+8/10=

64/10= 32/5

f)MMC(4,6)=12

12.10-7.3-2.5/12

120-21-10/12

120-31/12

89/12

g)1/4+20/3+5/6

MMC(4,3,6)= 12

3.1+4.20+2.5/12

3+80+10/12

93/12= 31/4

h)27/5-1/3+1/2

MMC(5,3,2)= 30

6.27-10.1+15.1/30

162-10+15/30= 162+5/30

167/30

Answer 2

Resposta:

1º - 2/7 + 10/7 =  12/7  

Simplificando: 12/7 =  1+ 5/7

2º - 5/6 + 2/3 = 9/6

Simplificando: 9/6 = 1 + 1/2