Question

CALCULE :

A ) 3/4 - 1/2
B ) 3/8 + 3/2
C ) 3/5 + 3/4 + 3/10
D ) 8/5 - 1/4 - 3/10

OBRIGADO !

Answer 1

A) 3/4 - 1/2 -> (3-2)/4 -> 1/4
B) 3/8 + 3/2 -> (3+12)/8 -> 15/8
C) 3/5 + 3/4 +3/10 -> (12+15+6)/20 -> 33/20
D) 8/5 - 1/4 - 3/10 -> (32-5-6)/20 -> 21/20