Question

-8 4/7-(-6 3/5)-(9 2/5)-1,6-6 3/7

Answer 1

-8 4/7 + 6 3/5 - 9 2/5 - 1,6 - 6 3/7 = -8 4/7 + 6 3/5 - 9 2/5 - 1 6/10 - 6 3/7 = -8 4/7 + 6 3/5 - 9 2/5 - 1 3/5 - 6 3/7 = -8 20/35 + 6 21/35 - 9 14/35 - 1 21/35 - 6 15/35= -1 34/35 - 9 14/35 = -10 48/35 - 1 21/35 = -11 69/35 - 6 15/35 = - 17 84/35 = -19 14/35 = -19 2/5.

Answer 2

Let's break down the expression step by step:

1. -8: This is a negative integer.

2. 4/7: This is a fraction.

3. -(-6 3/5): This is a subtraction of a mixed number. To subtract a mixed number, you change the sign of the second number and then perform addition. So, it becomes -(-6 3/5) = 6 3/5.

4. -(9 2/5): This is a negative mixed number.

5. -1,6: This seems like a typo as it should be written as -1.6. This is a negative decimal number.

6. -6 3/7: This is a negative mixed number.

Now, let's perform the calculations:

-8 + 4/7 + 6 3/5 - 9 2/5 - 1.6 - 6 3/7

Step 1: Add the fractions together: -8 + 4/7 = -57/7

Step 2: Add the mixed numbers together: 6 3/5 - 9 2/5 = -2 4/5

Now the expression becomes: -57/7 - 2 4/5 - 1.6 - 6 3/7

Step 3: Convert the whole numbers and fractions to improper fractions: -2 4/5 = -14/5 -6 3/7 = -45/7

Now the expression becomes: -57/7 - 14/5 - 1.6 - 45/7

Step 4: Find a common denominator for the fractions. The common denominator for 7 and 5 is 35.

Now the expression becomes: (-575)/(75) - (147)/(57) - (1.635)/35 - (455)/(7*5)

Step 5: Perform the operations on the fractions: -285/35 - 98/35 - 56/35 - 225/35

Step 6: Combine the fractions: (-285 - 98 - 56 - 225)/35

Step 7: Perform the final subtraction: -664/35

The final result is -664/35, which is an improper fraction. If needed, you can convert it back to a mixed number by dividing 664 by 35 and expressing the remainder as a fraction:

-664 ÷ 35 = -18 with a remainder of -14.

So, the final result in mixed number form is approximately -18 14/35.