Question

Помогите ПАЗЯЗЯ!!!!!!!!!

Answer 1

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1

а) 1) 2/5 * 3/8 = 6/40 = 3/20

2) 3/10 * 5/6 = 15/16 = 1/4

3) 3/8 * 24 = 3/8 * 24/1 = 72/8 = 9

4) 1 1/2 * 3 1/3 = 3/2 * 10/3 = 30/6 = 5

б) 1) 2 3/8 * 3/19 * 1 1/9a = 19/8 * 3/19 * 10/9а = 1/8 * 10/3а = 1/4 * 5/3а = 5/12а

2) 5/9 * 3b * 2/5 = 1/9 * 3b * 2 = 1/3b * 2 = 2/3b

в) 0,5 * 3 1/5 + 3 1/2 * (2 - 1 1/7) = 1/2 * 16/5 + 7/2 * (2- 8/7) = 8/5 + 7/2 * 6/7 = 8/5 + 1/2 * 6 = 8/5 +3 = 23/5