Вычеслите значение выражения(9/1,6; 4,92/1,23; 23,32/8,8; 50,4/7,2)

9/1,6=90/16=45/8=5 5/8=5,625
4,92/1,23=492/123=4
23,32/8,8=2332/880=583/220=53/20=2,65
50,4/7,2=504/72=63/9=7

(9/1,6 : 4,92/1,23 : 23,32/8,8 : 50,4/7,2) =
= 5,625 : 4 : 2,65 : 7 = 5,625/4 : 2,65/7 =
= 5,625/4 • 7/2,65 = 1,125/4 • 7/0,53
= 7,875/2,12= 7 875/1000 : 2 12/100
= 7 7/8 : 2 3/25=
= 63/8 : 53/25 = 63•25 : 8•53 = 1575/424 = 3 303/424