Пропорция у :1 5/31=7 3/4:1/3

Question

Пропорция у :1 5/31=7 3/4:1/3

Answer 1

У / 36/31 = 31/4 / 1/3

у × 1/3 = (36×31) / (31×4)

у / 3 = 36 / 4

у = 9 × 3

у = 27