Решить по действиям Типо: 1) 2) 3)

Question

Решить по действиям Типо: 1) 2) 3)

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Answer 1

(1.6² - 2.2 * 3/11) : 1.4 = 1.4 = 7/5 = 1 2/5

2.2 = 2 2/10 = 2 1/5 = 11/5

1.4 = 14/10 = 7/5

1.6 = 16/10 = 8/5

1. 2.2 * 3/11 = 11/5 * 3/11 = 3/5

2. 1.6² - 3/5 = (8/5)² - 3/5 = 64/25 - 15/25 = 49/25

3. 49/25 : 1.4 = 49/25 : 7/5 = 49/25 * 5/7 = 7/5 = 1.4