Question

Frações adição e subtração com denominadores diferentes.

Answer 1

Olá.
a) 3/8 + 3/8 = 6/8÷2=3/4
b) 5/7 + 1/2 = 10/14+7/14=17/14 = 1 3/14
c) 7/5 - 2/5 = 5/5÷5=1
d) 3/4 - 1/6=9/12-2/12=7/12
e) 2 - 1 2/3 = 2/1-5/3= 6/3-5/3=1/3
f) 2 x 2/7=4/7
g) 4 x 1/2= 4/2÷2=2/1=2
h) 5/8÷2=5/8÷2/1=5/8x1/2=5/16
i) 3/4÷3/3=3/4x3/3=9/12÷3=3/4
j) 8÷14 = 8/1÷14/1=8/1x1/14=8/14÷2=4/7

Espero ter ajudado.