Question

calcule as adições e subtrações de frações heterogêneas :
E) 12/6-3/8
F) 6/5-2/3-1/3
G) 7/3+3/4-2/4
H) 6/7-1/3+4/3
J) 7/4-8/9
K) 10/5-3/6
L) 2/3+3/4+2/6

《《《《 ME AJUDEM 》》》》​

Answer 1

Explicação passo-a-passo:

E) 12/6-3/8

= 96 - 18 / 48 = 78/48

F) 6/5 - 2/3 - 1/3

18/15 - 10/15 - 5 /15 = 3/15

G) 7/3 + 3/4 - 2/4

28/12 + 9/12 - 6/12 = 31/12

H) 6/7 - 1/3 + 4/3

6/7 - 5/3 = 18/21 - 35/21

J) 7/4 - 8/9

63/36 - 32/36 = 31/36

K) 10/5 - 3/6

60/30 - 15/30 = 45/30 = 9/6 = 3/2

L) 2/3 + 3/4 + 2/6

8/12+9/12 + 2/6 = 17/12 + 2/6 = 102/ 72 + 24/72 = 126/72 = 63/36