Question

Найди неизвестный член пропорции: 1 7/8:8 1/3=х:4/9

Answer 1

15/8 : 25/3 = 9/40 
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9/40 = X : 4/9 
X = 9/40 * 4/9 
X = 1/10 
X = 0,1

Answer 2

Х=4/9*1 7/8 : 8 1/3
1) 4/9*15/8=5/6
2) 5/6 :25/3=5/6*3/25=0,1