Question

1)48 3/5 : 6 3/4 × 5/12 - 2 5/6 + 2 3/4 × (1 1/2 × 1/3 - 13:26)= 2)(8 7/15- 3 3/14+ 4 2/5- 8 7/60): (4 1/4 - 2 3/4)=. 3)2 3/5 : 6 1/15 + 1 1/14 - 1 39/73 × (5 5/7- 5 1/16)=

Даю 100 баллов ​

Answer 1

Ответ:

1/6, 1 1/42, 1/2

Пошаговое объяснение:

4. 48 3/5 : 6 3/4 × 5/12 - 2 5/6 + 2 3/4 × (1 1/2 × 1/3 - 13:26)

1. 1 1/2*1/3 = 3/1*2/3 = 3*1/2*3 = 3/6 = 1*3/2*3 = 1/2

2. 13:26 = 13/26 = 1*13/2*13 = 1/2

3. 1/2 - 1/2 = 1-1/2 = 0

4. 48 3/5 : 6 3/4 = 243/5:27/4 = 243*4/5*27 = 972/135 = 36*27/5*27 = 7 1/5

5. 7 1/5 * 5/12 = 36/5 * 5/12 = 36/5*5/12 = 36*5/5*12 = 180/60= 3

6. 2 3/4 * 0 = 0/4 = 0

7. 3 - 2 5/6 = 1/6 = 1/6

8. 1/6 + 0 = 1/6:

6. (8 7/15- 3 3/14+ 4 2/5- 8 7/60): (4 1/4 - 2 3/4)

1. 8 7/15 - 3 3/4 = 127/15 - 45/14 = 45*127-15*45/210 = 1103/210= 5 53/210

2. 5 53/210 + 4 2/5 = 1103/210+22/5 = 1103+42*22/210 = 2027/210 = 9 137/210

3. 9 137/210 - 8 7/60 = 2027/210 - 487/60 = 2*2027-7*487/420 = 645/420 = 43*15/28*15 = 1 15/28

4. 4 1/4 - 2 3/4 = 17/4 - 11/4 = 17-11/4 = 6/4 = 3*2/2*2 = 1 1/2

5. 1 15/28:1 1/2 = 43/28:3/2 = 43*2/2*3 = 86/84 = 43*2/42*2 = 1 1/42:

8. 2 3/5 : 6 1/15 + 1 1/14 - 1 39/73 × (5 5/7- 5 1/16) = 1/2: