Question

Calcule o resultado das operações a)2/9+5/9 b)5/6-2/6 c)3/4+1/5 d)7/8-4/9 e)1/7+3/5+9/14 f)3-14/5 g)1 2/11+7/10 h) 1/5-1 1/6 i)7+2/9 j)3/4-1/6 k)1/5+2+7/8 l)3 2/5-1/7

Answer 1

Calcule o resultado das operações

a)2/9+5/9  = 7/9

b)5/6-2/6 = 3/6 = 1/2

c)3/4+1/5 = (15 + 4)/20 = 19/20

d)7/8-4/9 = (63 - 32)/72 = 31/72

e)1/7+3/5+9/14 = 10/70 + 42/70 + 45/70 = 97/70

f)3-14/5 = 15/5 - 14/15 = 1/15

g)1 2/11+7/10 = 13/11 + 7/10 = (130 + 77)/110 = 207/110

h) 1/5-1 1/6 = 1/5 - 7/6 = 6/30 - 35/30 = -29/30

i)7+2/9 = 63/9 + 2/9 = 65/9

j)3/4-1/6 = (18 - 4)/24 = 14/24 = 7/12

k)1/5+2+7/8 = 8/40 + 80/40 + 35/40 = 123/40

l)3 2/5-1/7  = 17/5 - 1/7 = (119 - 5)/35= 114/35

Answer 2

Resposta:

(+6):(+3)

Explicação passo-a-passo:

alguém me explica