Question

-3/14*7/9-8/15:(-4/5)+1/12

Answer 1

Ответ:

Ответ 7/12

17

____

12

в столбик, как ты понял)

Answer 2

To simplify the expression:

-3/14 * 7/9 - 8/15 : (-4/5) + 1/12

Follow the order of operations (PEMDAS/BODMAS: Parentheses/Brackets, Exponents/Orders, Multiplication and Division, Addition and Subtraction):

1. Start with the division inside the parentheses: -3/14 * 7/9 - 8/15 : (-4/5) + 1/12

2. Calculate the division inside the parentheses: -3/14 * 7/9 + 8/15 * (5/4) + 1/12

3. Perform the multiplications and divisions from left to right:

• (Note: To multiply fractions, you multiply the numerators together and the denominators together) (-3 * 7) / (14 * 9) + (8 * 5) / (15 * 4) + 1/12

4. Calculate the multiplications:

-21 / 126 + 40 / 60 + 1/12

5. Simplify fractions:

-21 / 126 reduces to -1/6 because both the numerator and denominator can be divided by 21. 40 / 60 reduces to 2/3 because both the numerator and denominator can be divided by 20.

Now the expression is:

-1/6 + 2/3 + 1/12

6. To add or subtract fractions, you need a common denominator, which in this case is 12:

-2/12 + 8/12 + 1/12

7. Add the fractions:

(-2 + 8 + 1) / 12 = 7/12

So, the simplified result of the expression is 7/12.