Question

(7/15+2/9)-2/15 скільки буде?​

Answer 1

Пошаговое объяснение:

$( \frac{7}{15} + \frac{2}{9} ) - \frac{2}{15} = (\frac{21 + 10}{45}) - \frac{2}{5} = \frac{31}{45} - \frac{2}{15} = \frac{5}{9}$

Answer 2

Ответ:

5/9

Пошаговое объяснение:

(7/15+2/9)-2/15 = (21/45+10/45)-6/45 =  31/45-6/45 = 25/45 = 5/9

попытка записать адекватно:

$(\frac{7}{15} +\frac{2}{9})- \frac{2}{15} =(\frac{21}{45} +\frac{10}{45})- \frac{6}{45}= \frac{31}{45} -\frac{6}{45}= \frac{25}{45} =\frac{5}{9}$

Answer 3

To solve the expression (7/15 + 2/9) - 2/15, we need to follow the order of operations, which is often remembered using the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

Let's break down the expression step by step:

1. First, we need to add the fractions 7/15 and 2/9. To add fractions, we need to find a common denominator. In this case, the least common multiple of 15 and 9 is 45.

- For 7/15, we multiply the numerator and denominator by 3 to get 21/45. - For 2/9, we multiply the numerator and denominator by 5 to get 10/45.

Now we can add the fractions: 21/45 + 10/45 = 31/45.

2. Next, we subtract the fraction 2/15 from the result of the addition. Again, we need a common denominator, which is 45.

- For 2/15, we multiply the numerator and denominator by 3 to get 6/45.

Now we can subtract the fractions: 31/45 - 6/45 = 25/45.

So, the value of the expression (7/15 + 2/9) - 2/15 is 25/45.

Please let me know if there's anything else I can help you with!