Question

8. Обчисли значення виразу, в робочому зошиті. 231 527 3 18 12 36 a) 5-48-3 +5- 2 6) 23 (12 - 2 5 3 1 + + 2 5 6 4 :3 6​

Answer 1

Пошаговое объяснение:

а

1) 5 1/2 * 48 = 11/2 * 48 = 11/1 * 24 = 264/1 = 264

2) 3 2/3 : 1/18 = 11/3 * 18/1 = 11/1 * 6/1 = 66/1 = 66

3) 5 5/12 : 7/36 = 65/12 * 36/7 = 65/1 * 3/7 = 195/7 = 27 6/7

4) 264 - 66 = 198

5) 198 + 27 6/7 = 225 6/7

б

1) 1 1/2 - 2/5 = 1 5/10 - 4/10 = 1 1/10

2) 2 3/4 * 1 1/10 = 11/4 * 11/10 = 121/40 = 3 1/40

3) 5/6 + 3/4 = 10/12 + 9/12 = 19/12

4) 19/12 : 3 1/6 = 19/12 : 19/6 = 19/12 * 6/19 = 1/2 * 1/1 = 1/2

5) 3 1/40 + 1/2 = 3 1/40 + 20/40 = 3 21/40