Сократите 75/90 150/120 140/210 330/495
75/90 = 5/6 150/120 = 5/4 = 1 1/4 140/210 = 2/3 330/495 = 2/3
75/90=5/6 150/120=5/4 140/210=2/3 330/495=2/3