Did you mean the following for the problem:

10) perform the indicated operations
3 and 3/4 (divided by ) 1 and 3/8

.
3 3/4 - 1 3/8
.

15/4 (divided by ) 11/8= 30/11 =(after rounding it should be 2.73) that's how it suppost to be and look

Yes, that is what I meant. You never said how accurately they weanted a decimal answer. The 30/11 answer is exact.

To solve the problem, you need to perform the indicated operations, which in this case is division and subtraction. The given expression is:

3 and 3/4 (divided by) 1 and 3/8

Step 1: Convert the mixed fractions into improper fractions:
3 and 3/4 can be written as (4 * 3 + 3)/4 = 15/4
1 and 3/8 can be written as (8 * 1 + 3)/8 = 11/8

Step 2: Perform the division of the fractions:
To divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction. In this case, you need to divide 15/4 by 11/8.

15/4 ÷ 11/8 = 15/4 * 8/11

Next, multiply the numerators together and the denominators together:

(15 * 8) / (4 * 11) = 120/44

Step 3: Simplify the resulting fraction:
To simplify the fraction, find the greatest common divisor (GCD) of the numerator and denominator, and divide both by it.

The GCD of 120 and 44 is 4, so divide both numerator and denominator by 4:

120/44 = (120 ÷ 4) / (44 ÷ 4) = 30/11

The exact result of the division is 30/11.

After rounding, the decimal approximation of 30/11 is approximately 2.73.