у + 4 3/5 = 7 × 1.2 = 8.4
у = 8.4 - 4 3/5 = 8.4 - 4.6 = 3.8
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у + 4 3/5 = 7 × 1.2 = 8.4
у = 8.4 - 4 3/5 = 8.4 - 4.6 = 3.8