Question

(2 3/4+2 1/5):(-3 3/10)

Answer 1

Ответ:

-1,5

Пошаговое объяснение:

2 3/4 это 2,75

2 1/5 это 2,2

-3 3/10 это -3,3

1) 2,75+2,2=4,95

2)4,95/-3,3=-1,5

Answer 2

To solve the expression (2 3/4 + 2 1/5) / (-3 3/10), you can follow these steps:

1. Convert the mixed numbers to improper fractions. 2 3/4 = 11/4 2 1/5 = 11/5 -3 3/10 = -33/10

2. Rewrite the expression with the improper fractions: (11/4 + 11/5) / (-33/10)

3. Find a common denominator for the fractions in the numerator, which is 20. (55/20 + 44/20) / (-33/10)

4. Add the fractions in the numerator: (99/20) / (-33/10)

5. Divide by a fraction by multiplying by its reciprocal: (99/20) * (-10/33)

6. Simplify the expression by canceling out common factors: (99 * -10) / (20 * 33) = -990 / 660

7. Reduce the fraction by dividing both the numerator and denominator by their greatest common divisor (30): (-990 / 660) ÷ (30/30) = -33/22

So, (2 3/4 + 2 1/5) / (-3 3/10) = -33/22.