Question

2/3.4/5+1/2=
1/2-5/8.5/4=

Answer 1

Olá,

= 2/3 x 4/5 + 1/2 mmc = 30

= 20 x 24 + 15

= 480 + 15

= 495

= 1/2 - 5/8 x 5/4 mmc = 8

= 4 - 5 x 10

= 4 - 50

= -46

Espero ter ajudado!!!