Question

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

Answer 1

Ответ:

Пошаговое объяснение:

-6 1/2+ (-3 5/7)= -13/2+(-26/7)= -91/14+(-52/7)= - 143/14= - 10  3/14

-9+(-3 5/9)= -12 5/9

- 3/7 +(-4/7)​= -7/7= - 1

Answer 2

Let's solve each of these addition problems step by step:

1. -6 1/2 + (-3 5/7):

First, let's find a common denominator for the fractions, which is 14. Then, convert the mixed numbers to improper fractions:

-6 1/2 = -13/2 -3 5/7 = -26/7

Now, we can add the fractions:

(-13/2) + (-26/7)

To add fractions, you need a common denominator (in this case, 14):

(-91/14) + (-52/14)

Now, add the numerators:

-91 - 52 = -143

So, the result is:

-143/14, which can be simplified to -71/7.

2. -9 + (-3 5/9):

First, convert the mixed number to an improper fraction:

-3 5/9 = -32/9

Now, we can add the whole numbers and fractions separately:

-9 + (-32/9)

To add a whole number and a fraction, we need to convert the whole number to a fraction with the same denominator:

-9 = -81/9

Now, we can add the fractions:

(-81/9) + (-32/9)

Add the numerators:

-81 - 32 = -113

So, the result is:

-113/9.

3. -3/7 + (-4/7):

To add these fractions, you simply add the numerators while keeping the common denominator:

(-3/7) + (-4/7)

Add the numerators:

-3 - 4 = -7

So, the result is:

-7/7, which can be simplified to -1.

So, the answers are:

1. -6 1/2 + (-3 5/7) = -71/7
2. -9 + (-3 5/9) = -113/9
3. -3/7 + (-4/7) = -1