Question

(1/12+5/9)* 1 7/13 виконайте дії​

Answer 1

Ответ:

Пошаговое объяснение:

1) 1/12 + 5/9 = 3/36 + 20/36 = 23/36

2) 23/36 * 1. 7/13 =

23/36 * 20/13 = 23/9 * 5/13 = 115/117

Answer 2

To solve the expression $(\frac{1}{12} + \frac{5}{9}) \times \frac{20}{13}$, you can follow these steps:

1. Find a common denominator for the fractions inside the parentheses. The common denominator for 12 and 9 is 36.

   $$\left(\frac{1 \times 3}{12 \times 3} + \frac{5 \times 4}{9 \times 4}\right) \times \frac{20}{13} = \left(\frac{3}{36} + \frac{20}{36}\right) \times \frac{20}{13}$$

2. Combine the fractions inside the parentheses.

   $$\left(\frac{3 + 20}{36}\right) \times \frac{20}{13} = \left(\frac{23}{36}\right) \times \frac{20}{13}$$

3. Multiply the fractions.

   $$\frac{23 \times 20}{36 \times 13} = \frac{460}{468}$$

4. Simplify the fraction if possible. In this case, both the numerator and denominator are divisible by 4.

   $$\frac{460 \div 4}{468 \div 4} = \frac{115}{117}$$

So, $(\frac{1}{12} + \frac{5}{9}) \times \frac{20}{13} = \frac{115}{117}$.