Question

Сколько будет ребята помогите очень надо а. 8 4/15-6 8/15 +7 4/23= б.10 1/25 +9 24/25 - 6 9/25=в.11 4/29-( 7 7/29+3 4/29+3 4/29) = ?

Answer 1

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Answer 2

Calculation 1: 8 4/15 - 6 8/15 + 7 4/23

To solve this calculation, we need to perform subtraction and addition of mixed numbers. Let's break it down step by step:

1. Convert all the mixed numbers to improper fractions: - 8 4/15 = (8 * 15 + 4) / 15 = 124/15 - 6 8/15 = (6 * 15 + 8) / 15 = 98/15 - 7 4/23 = (7 * 23 + 4) / 23 = 165/23

2. Perform the subtraction and addition: - 124/15 - 98/15 + 165/23 = (124 - 98 + 165) / 15 + 23 = 191/15 + 23

3. Convert the improper fraction back to a mixed number: - 191/15 = 12 11/15

Therefore, the answer to the calculation 8 4/15 - 6 8/15 + 7 4/23 is 12 11/15.

Calculation 2: 10 1/25 + 9 24/25 - 6 9/25

To solve this calculation, we need to perform addition and subtraction of mixed numbers. Let's break it down step by step:

1. Convert all the mixed numbers to improper fractions: - 10 1/25 = (10 * 25 + 1) / 25 = 251/25 - 9 24/25 = (9 * 25 + 24) / 25 = 249/25 - 6 9/25 = (6 * 25 + 9) / 25 = 159/25

2. Perform the addition and subtraction: - 251/25 + 249/25 - 159/25 = (251 + 249 - 159) / 25 = 341/25

3. Convert the improper fraction back to a mixed number: - 341/25 = 13 16/25

Therefore, the answer to the calculation 10 1/25 + 9 24/25 - 6 9/25 is 13 16/25.

Calculation 3: 11 4/29 - (7 7/29 + 3 4/29 + 3 4/29)

To solve this calculation, we need to perform subtraction and addition of mixed numbers. Let's break it down step by step:

1. Convert all the mixed numbers to improper fractions: - 11 4/29 = (11 * 29 + 4) / 29 = 333/29 - 7 7/29 = (7 * 29 + 7) / 29 = 210/29 - 3 4/29 = (3 * 29 + 4) / 29 = 91/29

2. Perform the addition inside the parentheses: - 7 7/29 + 3 4/29 + 3 4/29 = (210/29 + 91/29 + 91/29) = 392/29

3. Perform the subtraction: - 333/29 - 392/29 = (333 - 392) / 29 = -59/29

4. Convert the improper fraction back to a mixed number: - -59/29 = -2 1/29

Therefore, the answer to the calculation 11 4/29 - (7 7/29 + 3 4/29 + 3 4/29) is -2 1/29.

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