Simplify: square root 49

The square root of 49 is 7.

simplify square root 81

The square root of 81 is 9.

8/11 + 2/3 =

To add these fractions together, first find a common denominator for both fractions.

The common denominator for 11 and 3 is 33.

Next, convert the fractions to have this common denominator:

8/11 * (3/3) = 24/33
2/3 * (11/11) = 22/33

Now that the fractions have a common denominator, you can add them together:

24/33 + 22/33 = 46/33

So, 8/11 + 2/3 equals 46/33.

5 1/8 − 13/4

=
5

To subtract mixed numbers, you need to find a common denominator for the fractions.

The common denominator for 8 and 4 is 8.

Next, convert the fractions to have this common denominator:

5 1/8 = 41/8
13/4 = 26/8

Now that both fractions have a common denominator, you can subtract them:

41/8 - 26/8 = 15/8

Finally, add the whole numbers:

5 - 0 = 5

So, 5 1/8 - 13/4 is equal to 5 15/8.

2 3/8 ⋅ 13/4 =

To multiply these mixed numbers, you first need to convert them to improper fractions.

2 3/8 can be written as (2 * 8 + 3) / 8 = 19/8.

Next, multiply the fractions:

(19/8) * (13/4) = (19 * 13) / (8 * 4) = 247/32.

Therefore, 2 3/8 * 13/4 = 247/32.