Question

15:3 3/4-(-10 1/2:1 1/2)*3/14):(1 1/4-1 23/52)= Решить дроби.

Answer 1

Ответ:

1) -10 1/2 : 1 1/2 = -21/2 * 2/3 = -7

2) -7 * 3/14 = -3/2

3) 15 : 3 3/4 = 15 * 4/15 = 4

4) 4 -(-3/2) = 4 + 3/2 = 5 1/2

5) 1 1/4 - 1 23/52 = 1 13/52 - 1 23/52 = -10/52 = -5/26

6) 5 1/2 : (-5/26)= 11/2 *(- 26/5) = -143/5 = -28 3/5

Пошаговое объяснение:

Answer 2

Ответ:

1.-7

2.3/2

Пошаговое объяснение:

Answer 3

To solve the expression involving fractions, follow these steps:

Step 1: Convert all mixed numbers to improper fractions. Step 2: Perform the operations according to the order of operations (PEMDAS/BODMAS).

Given expression: 15 3/4 - (-10 1/2 ÷ 1 1/2) * 3/14 ÷ (1 1/4 - 1 23/52)

Step 1: Convert mixed numbers to improper fractions: 15 3/4 = (4 * 15 + 3) / 4 = 63/4 -10 1/2 = (2 * -10 + 1) / 2 = -21/2 1 1/2 = (2 * 1 + 1) / 2 = 3/2 1 1/4 = (4 * 1 + 1) / 4 = 5/4 1 23/52 = (52 * 1 + 23) / 52 = 75/52

Now the expression becomes: (63/4) - (-21/2 ÷ 3/2) * 3/14 ÷ (5/4 - 75/52)

Step 2: Perform the operations step by step:

First, simplify the expression inside the parentheses: -21/2 ÷ 3/2 = (-21/2) * (2/3) = -21/3 = -7

Now, the expression becomes: (63/4) - (-7) * 3/14 ÷ (5/4 - 75/52)

Next, simplify the expression inside the second set of parentheses: 5/4 - 75/52

To subtract these fractions, find a common denominator, which is 52: (5 * 13)/(4 * 13) - 75/52 = 65/52 - 75/52

Now, subtract the fractions: 65/52 - 75/52 = (65 - 75)/52 = -10/52 = -5/26

Now, the expression becomes: (63/4) - (-7) * 3/14 ÷ (-5/26)

Next, simplify the expression inside the second set of parentheses: (-7) * 3/14 = (-21/14) = -3/2

Now, the expression becomes: (63/4) - (-3/2) ÷ (-5/26)

Next, divide the fractions: (-3/2) ÷ (-5/26) = (-3/2) * (-26/5) = (3/2) * (26/5) = 39/5

Now, the expression becomes: (63/4) - (39/5)

To subtract these fractions, find a common denominator, which is 20: (63 * 5)/(4 * 5) - (39 * 4)/ (5 * 4) = 315/20 - 156/20

Now, subtract the fractions: 315/20 - 156/20 = (315 - 156)/20 = 159/20

So, the final answer is 159/20.