Answer:
7/2
Step-by-step explanation:
Step 1: Convert the mixed fraction to an improper fraction
3 1/2 is 7/2 (multiply the denominator by the whole number,
then add the numerator, leave that new number
over the original denominator)
Now our expression is 7 - 7/2
Step 2: Find a common denominator
The common denominator is 2, so multiply 7 by 2/2
7(2/2) - 7/2
14/2 - 7/2 (14/2 = 7, but now we can combine fractions)
Step 3: Add or subtract numerators, here it's subtraction
14/2 - 7/2 = (14 - 7)/2 = 7/2
