если можно на тетради номер 602

Пошаговое объяснение:

1 пример:

1) 2. 2/15 * 6. 1/4 = 32/15 * 25/4 = 8/3 * 5/1 = 40/3 =

13. 1/3

2) 5. 1/3 * 1. 1/8 = 16/3 * 9/8 = 2/1 * 3/1 = 6/1 = 6

3) 13. 1/3 - 6 = 7. 1/3

4) 1/3 * 7. 1/3 = 1/3 * 22/3 = 22/9 = 2. 4/9

5) 2. 4/9 + 4. 5/9 = 6. 9/9 = 7

ответ: 7

2 пример:

1) 12. 7/12 - 9. 19/36 = 12. 21/36 - 9. 19/36 = 3. 2/36 =

3. 1/18

2) 1. 4/5 * 3. 1/18 = 9/5 * 55/18 = 1/1 * 11/2 = 11/2 = 5. 1/2

3) 17/35 * 1. 11/34 = 17/35 * 45/34 = 1/7 * 9/2 = 9/14

4) 5. 1/2 - 9/14 = 5. 7/14 - 9/14 = 4. 21/14 - 9/14 = 4. 12/14 =

4. 6/7

5) 1. 2/5 * 4. 6/7 = 7/5 * 34/7 = 34/5 = 6. 4/5

6) 30. 4/5 - 6. 4/5 = 24

ответ: 24

1) (1/3)*((32/15)*(25/4)-(16/3)*(9/8))+4  5/9=1/3*((8*5/3)-(2*9/3))+4 5/9=

(40-18)/9+ 4  5/9=22/9+4  5/9=2 4/9+4 5/9=7

2) выполним по действиям

1) 12 7/12-9 19/36= 12 21/36 -9 19/36= 3 2/36= 3 1/18=55/18;

2) 1 4/5* (55/18)=(9/5)*(55/18)=11/2= 5 1/2;

3) 17/35*(1 11/34)=(17/35)* (45/34)=(17*45)/(35*34)=9/(7*2)=9/14;

4)5 1/2- 9/14=4 3/2-9/14=4(21-9)/14=4  12/14=4  6/7=34/7

5)1 2/5  *(34/7)=(7/5)*(34/7)=34/5=6 4/5

6) 30 4/5 -6 4/5=24