Question

tính nhanh:18/21 +19/32 +3/21+13/32

(giúp nhanh nhanh hộ tui nha)

Answer 1

18/21 +19/32 +3/21+13/32

= (18/21 + 3/21) + (19/32 + 13/32)

= 1 + 1=2

Answer 2

2

Answer 3

2

Answer 4

=(18/21 + 3/21)+ (19/32 + 13/32)

=21/21 + 32/32

=1 + 1

=2