-8/9 + 9/8

To add -8/9 and 9/8, we need to find a common denominator. In this case, the common denominator is 72 because 9 times 8 equals 72.

So, we can rewrite -8/9 as -64/72 (by multiplying both the numerator and denominator by 8) and 9/8 as 81/72 (by multiplying both the numerator and denominator by 9).

Now, we can add the fractions:
-64/72 + 81/72 = (81 - 64)/72
= 17/72

Therefore, -8/9 + 9/8 = 17/72.

-8/5 - -1/5

To subtract -8/5 and -1/5, we can simply subtract the numerators and keep the denominator the same.

-8/5 - (-1/5) = -8/5 + 1/5

Since the denominators are the same, we can combine the numerators:

-8/5 + 1/5 = (-8 + 1)/5

Simplifying further, we get:

(-7)/5

Therefore, -8/5 - (-1/5) = -7/5.

-1/3 + -3/11

To add -1/3 and -3/11, we need to find a common denominator. In this case, the common denominator is 33 because 3 times 11 equals 33.

So, we can rewrite -1/3 as -11/33 (by multiplying both the numerator and denominator by 11) and -3/11 as -9/33 (by multiplying both the numerator and denominator by 3).

Now, we can add the fractions:
-11/33 + -9/33 = (-11 - 9)/33
= -20/33

Therefore, -1/3 + -3/11 = -20/33.

9

5

=
4545 and start fraction, 3, divided by, 5, end fraction
5
3

=
4545, so start fraction, 5, divided by, 9, end fraction
9
5

is
than start fraction, 3, divided by, 5, end fraction
5
3

.

To simplify the expression, we can start by simplifying each fraction individually:

9/5 ÷ 3/5 = (9/5) * (5/3)

We can cancel out the common factor of 5:

(9/1) * (1/3) = 9/3

Now, we can simplify 9/3:

9/3 = 3

Therefore, 9/5 ÷ 3/5 simplifies to 3.