The operation must be Subtraction.
(Step 1) Construct the best equation.
X=15 1/4 - 12 1/2
(Step 2) Transform mixed fractions into improper fractions.
15 1/4 -> 61/4
12 1/2 -> 25/2
*denominator × whole + numerator
(Step 3) Equate both of the denominators.
X= 61/4 - 25/2
= 61-50/4
= 11/4
X= 2 3/4 dm, the answer
*11/4 is 11÷4 and the answer is 2 remainder 3 divisor 4 (2r.3/4).
