Question

А) (3/4 - 1/2)•5= ... б) (5/7+1/21):2= ...

Answer 1

А) (3/4 - 1/2)•5 = 1 1/4

1)3/4 - 1/2 = 1/4

2)1/4•5= 1 1/4

б) (5/7+1/21):2  = 8/21

1)5/7+1/21 = 16/21

2)16/21 : 2 = 8/21