Question

Resolva as frações
A)-7/6+7/6=
B)-7/6+5/4=
C)-2/5+7/10=​

Answer 1

Resposta:

A)

-7/6+7/6=

**mantenha o denominador e some os numeradores

-7/6+7/6 =(-7+7)/6=0/6 =0

B)

-7/6+5/4

(-7*4+6*5)/(6*4)

=(-28+30)/24

=2/24=1/12

C)

-2/5+7/10=​

=(-2*10+5*7)/(5*10)

=(-20+35)/50

=15/50

=3/10