Question

Б) -(-4.35+4 3/7)-(0.35-2 3/7)

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Let's simplify the expression step by step:

1. Convert the mixed numbers to improper fractions: -4.35 = -4 - 0.35 = -4 - 35/100 = -4 - 7/20 = -87/20 4 3/7 = (4 * 7 + 3) / 7 = 31/7 0.35 = 35/100 = 7/20 2 3/7 = (2 * 7 + 3) / 7 = 17/7

2. Simplify the expression inside the first set of parentheses: -(-4.35 + 4 3/7) = -(-(87/20) + 31/7) = -(-87/20 + 31/7)

3. Find a common denominator for the fractions inside the second set of parentheses and combine them: (0.35 - 2 3/7) = (7/20 - 17/7)

4. Simplify the expression inside the second set of parentheses: (0.35 - 2 3/7) = (7/20 - 17/7) = (7/20 - 40/20) = -33/20

5. Now, simplify the entire expression: -(-87/20 + 31/7) - (-33/20)

6. Find a common denominator for the fractions inside the first set of parentheses and combine them: -(-87/20 + 31/7) = -(-(87/20 * 7/7) + 31/7) = -(-609/140 + 31/7)

7. Find a common denominator for the fractions inside the second set of parentheses and combine them: -(-609/140 + 31/7) = -(-609/140 + 280/140) = -(-609/140 + 280/140) = -(-329/140)

8. Finally, simplify the expression: -(-329/140) = 329/140

So, the simplified expression is 329/140.