Question

5/7×(-1 3/25)+2×0,5 ​

Answer 1

Ответ:

$\frac{1}{5}$

Пошаговое объяснение:

$\frac{5}{7}\cdot(-1\frac{3}{25})+2\cdot0,5=\frac{5}{7}\cdot(-\frac{8}{25})+1=-\frac{4}{5}+\frac{5}{5}=\frac{1}{5}$

Answer 2

Ответ:

$\frac{1}{5}$

Пошаговое объяснение:

5/7*(-1 3/25)+2*0,5=5/7*(-8/25)+1=-4/5+5/5=1/5

Answer 3

To solve this expression, follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right). In your expression:

1. Start with the multiplication and division from left to right:

   5/7 × (-1 3/25) = (5/7) × (-1 3/25)

   To multiply a fraction by a mixed number, first convert the mixed number to an improper fraction:

   -1 3/25 = -1 + 3/25 = (-25/25) + 3/25 = (-22/25)

   So, we have:

   (5/7) × (-22/25)

2. Multiply the fractions:

   (5/7) × (-22/25) = (5 × -22) / (7 × 25) = -110/175

3. Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor (in this case, 5):

   (-110/5) / (175/5) = -22/35

4. Now, move on to the next part of the expression:

   2 × 0.5 = 2 × 1/2 = 1

So, the final result is:

-22/35 + 1 = -22/35 + 35/35 = (-22 + 35)/35 = 13/35