Question

EFETUE AS OPERACOES E APRESENTE A RESPOSTA NA FORMA IRREDUTIVEL.
A) 1/4 + 1/5
B)3/5 + 1/3
C)1/8 + 1/4
D)4/7+1/3
E)2/5 + 1/10
F) 5/6 - 2/3
G)1-3/4
H)3-7/8
I)1 1/7-4/5
J)2 5/6-4/3

ME AJUDEMMM.PORFAVOR......

Answer 1

a) 9/20
b)14/15
c)3/8
d)19/21
e)1/2
f)1/6
g)1/4
h)17/8
i)12/35
j)3/2

Olha tirei as respostas deste site:http://www.wolframalpha.com/input/?i=2+5%2F6-4%2F3

Answer 2

a)9/20
b)14/15
c)3/8
d)19/21
e)25/50 forma irredutível 1/2
f)6/6 forma irredutível 1 inteiro
g)1/4
h)17/8
i)27/35
j)42/6 forma irredutível 7