Question

resolva as frações equivalentes abaixo:

b)4/7 - 9/14= ?
c)3/2 - 5/3= ?
d)9/8 + 10/5= ?
e)12/7 - 3/2= ?
f)3/8 - 4/10= ?

Answer 1

Resposta:

Explicação passo a passo:

b

4/7-9/14=

8/14-9/14=

-1/14

c

3/2-5/3=

9/6-10/6=

-1/6

d

9/8+10/5=

45/40+80/40=

125/40

e

12/7-3/2=

24/14-21/14=

3/14

f

3/8-4/10=

15/40-16/40=

-1/40