Question

efetue a operações:

a) 4/9+5/9=
b) 4/12+2/12+3/12=
c) 3/3+1/3=
d) 1/9+3/9+7/9+8/9=
e) 3/4-1/4=
f) 9/3-7/3=
g) 8/6-6/6=
h) 4/15-1/15=
i) 7/12-5/12=​

Answer 1

a)9/9=1

b)9/12=3/4

c)4/3

d)19/9

e)2/4=1/2

f)2/3

g)2/6=1/3

h)3/15=1/5

i)2/12=1/6

obs.: quando os denomimadores são iguais, basta somar os numeradores, não precisa fazer mmc.

Espero ter ajudado!!!

Answer 2

Resposta:

a)9/9=1

b)(4+2+3)/12=9/12=3/4

c)3/3+1/3=4/3

d)(1+3+7+8)/9=19/9

e)3/4-1/4=2/4=1/2

f)9/3-7/3=(9-7)/3=2/3

g)8/6-6/6=(8-6)/6=2/6=1/3

h)4/15-1/15=(4-1)/15=3/15=1/5

i)7/12-5/12=(7-5)/12=2/12=1/6