Question

alguem sabe a 10 ?????

Answer 1

a) 1/3 - 1/5 = 5 - 3/5 = 2/5
b) 5/4 - 4/5 = 25 - 16/20 = 9/20
c) 3 - 2/5 = 15 - 2/5 = 13/5
d) 3 1/2 - 2 3/4 = 7/2 - 11/4 = 14 - 11/4 = 3/4

Espero ter ajudado :)