Answer: 6
Explanation:
Conversion a mixed number 4 1/2 to a improper fraction: 4 1/2 = 4 1/2 = 4 · 2 + 1/2 = 8 + 1/2 = 9/2
To find a new numerator:
a) Multiply the whole number 4 by the denominator 2. Whole number 4 equally 4 * 2/2 = 8/2
b) Add the answer from the previous step 8 to the numerator 1. New numerator is 8 + 1 = 9
c) Write a previous answer (new numerator 9) over the denominator 2.
Four and one half is nine halfs.
Add: 6/4 + 9/2 = 6/4 + 9 · 2/2 · 2 = 6/4 + 18/4 = 6 + 18/4 = 24/4 = 4 · 6/4 · 1 = 6