Question

( 1/2,5-1 - 1/3 1/2-1) : 4/15

Answer 1

Вот так воооооооот ответ 1,25

Answer 2

To solve the expression, let's break it down step by step:

1. Simplify the expression inside the parentheses: (1/2.5 - 1) - (1/3 - 1/2) First, convert 2.5 to a fraction: 2.5 = 2 + 0.5 = 5/2 Now we have: (1/5 - 1) - (1/3 - 1/2)

2. Continue simplifying inside the parentheses: 1/5 - 1 = 1/5 - 5/5 = -4/5 1/3 - 1/2 = (2/6) - (3/6) = -1/6

Now our expression becomes: (-4/5) - (-1/6)

3. To subtract two fractions, we need a common denominator. The common denominator here is 30 (LCM of 5 and 6): (-4/5) - (-1/6) = (-24/30) - (5/30)

4. Now, subtract the fractions with the same denominator: (-24/30) - (5/30) = (-24 - 5) / 30 = -29/30

Now our expression becomes: -29/30

5. Finally, divide the result by 4/15: -29/30 ÷ 4/15 To divide by a fraction, we multiply by its reciprocal: -29/30 × 15/4 (Cancel out common factors to simplify the fraction) = (-29 × 15) / (30 × 4) = -435 / 120 (Reduce the fraction to the simplest form) = -29/8

So the final result of the expression is -29/8.