Question

-6 1/2+ (-3 5/7) -9+(-3 5/9) - 3/7 +(-4/7)​

Answer 1

Ответ: -23 97/126. См фото.

Пошаговое объяснение:

Answer 2

To add or subtract mixed numbers, we need to convert them into improper fractions first. Then we can perform the operations. Let's solve the expression step by step:

Step 1: Convert the mixed numbers into improper fractions. -6 1/2 = -13/2 -3 5/7 = -24/7 -9 = -9 -3 5/9 = -32/9

Step 2: Perform the addition and subtraction operations. -13/2 + (-24/7) - 9 + (-32/9) - 3/7 + (-4/7)

To add or subtract fractions, we need a common denominator. In this case, we can use 2 * 7 * 9 = 126.

(-13/2 * 63/63) + (-24/7 * 18/18) - (9 * 14/14) + (-32/9 * 14/14) - (3/7 * 18/18) + (-4/7 * 18/18)

(-819/126) + (-432/126) - (126/14) + (-448/126) - (54/126) + (-72/126)

Next, we combine the fractions: (-819 - 432 - 126 - 448 - 54 - 72) / 126

-1941 / 126

Finally, we simplify the fraction: -647/42

So, the simplified result of the expression is -647/42.