x - szukana liczba
5/6x = 7/15 * 150
x= 84
7/15 x 150 (skróci się) = 7/1 x 10 = 7070 x 5/6 = 350/6 = 58 1/3
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x - szukana liczba
5/6x = 7/15 * 150
x= 84
7/15 x 150 (skróci się) = 7/1 x 10 = 70
70 x 5/6 = 350/6 = 58 1/3