Question

ПОМОГИТЕ СРОЧНО РЕШИТЬ ПРОПОРЦИИ !!!!!!!!!!!!!!!!!! ПЛИЗЗЗЗЗЗЗЗЗЗЗЗЗЗЗ

Answer 1

а)
4 2/5 : х = 8 4/5 : 2 1/2
22/5 : x = 44/5 : 5/2 
22/5 * 5/2 = 44/5 * x
11 = 44/5 * x
44/5 * x = 11
x = 11 : 44/5
x = 5/4 = 1 1/4 = 1.25

б)
6 1/2 : 3 3/4 = 3 1/4 : y
13/2 : 15/4 = 13/4 : y
13/2 * y = 15/4 * 13/4
13/2 * y = 195/16
y = 195/16 * 2/13
y = 15/8 = 1 7/8 = 1,875