3. Вычислите.

Question

1) 3/8 ÷ 4/9 = 3/8 × 9/4 = 27/32. 2) 7/12 ÷ 4/3 = 7/12 × 3/4 = 21/48 = 7/16. 3) 2/5 + 3/10 = 4/10 + 3/10 = 7/10. 4) 6/10 - 4/5 = 6/10 - 8/10 = -2/10 = -1/5.

Accepted Answer

1) 3/8 ÷ 4/9 = 3/8 × 9/4 = 27/32. 2) 7/12 ÷ 4/3 = 7/12 × 3/4 = 21/48 = 7/16. 3) 2/5 + 3/10 = 4/10 + 3/10 = 7/10. 4) 6/10 - 4/5 = 6/10 - 8/10 = -2/10 = -1/5.

3. Вычислите.

Ответ:

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