Question

помогите пожалуйста пжпжпжпжпж​

Answer 1

1) 0,5 * 3 2/3 + 17,2 = 1/2 * 11/3 + 17,2 = 11/6 + 17 1/5 = 55/30 + 17 6/30 = 17 61/30 = 19 1/30

2) 10 7/9 - 2,5 * 1 1/6 = 10 7/9 - 5/2 * 7/6 = 10 7/9 - 35/12 = 10 7/9 - 2 11/12 = 10 28/36 - 2 33/36 = 7 31/36

3) 8 1/2 : 5 2/3 + 19,7 = 17/2 * 3/17 + 19,7 = 3/2 + 19,7 = 1,5 + 19,7 = 21,2

4) 7 1/4 * 35/58 : 5 5/6 = 29/4 * 35/58 * 6/35 = 29/4 * 3/29 = 3/4

Answer 2

Пошаговое объяснение:

№1

1) 0,5 * 3 2/3 = 5/10 * 11/3 = 55/30 = 11/6 = 1 5/6

2) 1 5/6 + 17,2 = 1 5/6 + 17 2/10 = 1 25/30 + 17 6/30 = 18 31/30 = 19 1/30

№2

1) 2,5 * 1 1/6 = 25/10 * 7/6 = 5/2 * 7/6 = 35/12 = 2 11/12

2) 10 7/9 - 2 11/12 = 10 28/36 - 2 33/36 = 9 74/36 - 2 33/36 = 7 41/36

№3

1) 8 1/2 : 5 2/3 = 17/2 : 17/3 = 17/2 * 3/17 = 3/2 = 1 1/2

2) 1 1/2 + 19,7 = 1,5 + 19,7 = 21,2

№4

1) 7 1/4 * 35/58 = 29/4 * 35/58 = 1/4 * 35/2 = 35/8

2) 35/8 : 5 5/6 = 35/8 : 35/6 = 35/8 * 6/35 = 6/8 = 3/4