Question

preciso de ajudinha!!!!!!!!

Answer 1

a) 2/3 - 3/5 → MMC → 10/15 -  9/15 → 1/15

b) 2/7 - 3/2 → MMC → 4/14 - 21/14 → -17/14

c) 4/5 + 1/6 → MMC → 24/30 + 5/30 → 29/30

d) 3/2 + 2/5 → MMC → 15/10 + 4/10 → 19/10