Question

Срочно допоможіть даю 100 балов

Answer 1

Пошаговое объяснение:

№337

1.

1) 4 2/3 * 6 = 14/3 * 6 = 14/1 * 2 = 28/1 = 28

2) 1 23/42 * 3 1/13 = 65/42 * 40/13 = 5/21 * 20/1 = 100/21 = 4 16/21

3) 2 1/8 * 1 29/51 = 17/8 * 80/51 = 1/1 * 10/3 = 10/3 = 3 1/3

4) 28 - 4 16/21 = 27 21/21 - 4 16/21 = 23 5/21

5) 23 5/21 + 3 1/3 = 23 5/21 + 3 7/21 = 26 13/21

2.

1) (5/12 + 13/20)² = (25/60 + 39/60)² = (64/60)² = (16/15)² = 256/225

2) 256/225 * 1 13/32 = 256/225 * 45/32 = 8/5 * 1/1 = 8/5 = 1 3/5

№343

1.

5/8а * 4/15в = (5/8 * 4/15) * (а * в) = (1/2 * 1/3) * (а * в) = 1/6 * ав = 1/6ав

2.

6 3/4х * 1 11/45у = (6 3/4 * 1 11/45) * (х * у) = (27/4 * 56/45) * (х * у) = (3/1 * 14/5) * (х * у) = 42/5 * ху = 8 2/5ху

3.

13/24d * 32c = (13/24 * 32) * (d * c) = (13/3 * 4) * (dc) = 52/3 * dc = 17 1/3dc