Question

решите плиз заранее спасибо

Answer 1

x:1 5/7 = 12/5 : 112/55
x :1 5/7 = 12/5 * 55/112
x : 1 5/7 = 33/28
x = 33/28 :  1 5/7
x =33/28 * 12/7
x=99/49
x = 2 1/49