Yg no 12 dengan caranya

Semoga bermanfaat yaaaaaa

a = 1 3/7 = 10/7
b = 4/5
c = 3,25 = 3 1/4 = 13/4

a : b x c
= 10/7 : 4/5 x 13/4
= 10/7 x 5/4 x 13/4
= 5/7 x 5/2 x 13/4
= 325/56
= 5 45/56