Question

Выполните сложение дробей a+5b/15+2a+4b/15 Заранее спасибо

Answer 1

Приводим все к общему знаменателю:
15а+5в+30а+4в/15=
45а+9в/15=
9(5а+в)/15=
3(5а+в)/5

Answer 2

Adding Fractions

To add the fractions a + 5b/15 and 2a + 4b/15, we need to find a common denominator and then add the numerators together.

Finding a Common Denominator

The common denominator for both fractions is 15.

Adding the Fractions

The sum of the fractions is: a + 5b/15 + 2a + 4b/15 = (a + 2a) + (5b + 4b)/15

Simplifying the Sum

Simplifying the sum, we get: (3a) + (9b)/15

So, the sum of the fractions a + 5b/15 and 2a + 4b/15 is 3a + 9b/15.