Question

9/10-4/5 3/2-1/4 4/5+1/2-5/8 11/12-5/8​

Answer 1

9/10 - 4/5 = 9/10 - 8/10 = 1/10

3/2 - 1/4 = 6/4 - 1/4 = 5/4

4/5 + 1/2 - 5/8 = 32/40 + 20/40 - 25/40 = 52/40 - 25/40 = 27/40

11/12 - 5/8 = 22/24 - 15/24 = 7/24

Espero ter ajudado ;)