Question

30,52:(-28)=- 1 2/3:(-2 1/7)=

Answer 1

Ответ:

Пошаговое объяснение:

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щищпщррщзп фото

Answer 2

30,52:(-28)
-(30,52:28)
Ответ: -1,09

- 1 2/3:(-2 1/7)
-5/3:(-15/7)
5/3*7/15
1/3*7/3
Ответ: 7/9

Answer 3

Let's break down the expressions step by step:

1. $30.52 - (-28)$

   To subtract a negative number, you can change it to addition:

   $30.52 + 28 = 58.52$

2. $1 \frac{2}{3} \div (-2 \frac{1}{7})$

   To divide by a negative number, you can change it to multiplication by the negative reciprocal:

   $1 \frac{2}{3} \times \left(-\frac{7}{15}\right)$

   Convert the mixed numbers to improper fractions:

   $1 \frac{2}{3} = \frac{5}{3}$

   Now, multiply:

   $\frac{5}{3} \times \left(-\frac{7}{15}\right)$

   Multiply the numerators and denominators:

   $= \frac{-35}{45}$

   Simplify the fraction by dividing both numerator and denominator by the greatest common divisor, which is 5:

   $= \frac{-7}{9}$

So, the expressions simplify to:

• $30.52 - (-28) = 58.52$
• $1 \frac{2}{3} \div (-2 \frac{1}{7}) = -\frac{7}{9}$