Question

-15 4/15 + 8 2/3 + 7 7/45

Answer 1

$-\frac{229}{15} + \frac{26}{3} + \frac{322}{45} = \frac{-687 + 390 + 322}{45} = \frac{25}{45} = \frac{5}{9}$

Ответ: $\frac{5}{9}$

Answer 2

-15 + 4/15 + 8 + 2/3 + 7 + 7/45 To solve this expression, follow the order of operations (also known as PEMDAS: Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right). Let's break down the given equation step by step: First, we add the whole numbers: -15 + 8 + 7 = 0. Next, let's add the fractions: 4/15 + 2/3 + 7/45. To add fractions, we need a common denominator, which is the least common multiple (LCM) of the denominators 15, 3, and 45, which is 45. We can simplify each fraction to have a denominator of 45: 4/15 = (4/15) * (3/3) = 12/45 2/3 = (2/3) * (15/15) = 30/45 7/45 (no need to simplify) Now, we can add the fractions: 12/45 + 30/45 + 7/45 = 49/45. Finally, add the whole numbers and the fraction: 0 + 49/45. Since we have a whole number and a fraction, we need to convert the whole number to fractions with the same denominator as the fraction. In this case, we multiply 0 by 45/45 to have the same denominator: 0 = 0/1 * 45/45 = 0/45 Now we can add: 0/45 + 49/45 = 49/45. Therefore, the final answer is 49/45.