04.05.2022

разделите: 1) число 72 в отношении 7:12, 2)разделите число 630 в отношнии 5:7:9

Ответ учителя по предмету Математика

1) 7 + 12 = 19 — общее количество частей

72 : 19 * 7 ≈ 26,5

72 : 19 * 12 ≈ 45,5

2) 5 + 7 + 9 = 21 — общее количество частей

630 : 21 * 5 = 150

630 : 21 * 7 = 210

630 : 21 * 9 = 270

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