Answer:
4 5/6 or 29/6
Explanation:
Conversion a mixed number 8 1/
4
 to a improper fraction: 8 1/4 = 8 1/
4
 = 8 · 4 + 1/
4
 = 32 + 1/
4
 = 33/
4
To find a new numerator:
a) Multiply the whole number 8 by the denominator 4. Whole number 8 equally 8 * 4/
4
 = 32/
4
b) Add the answer from previous step 32 to the numerator 1. New numerator is 32 + 1 = 33
c) Write a previous answer (new numerator 33) over the denominator 4.
Eight and one quarter is thirty-three quarters
Conversion a mixed number 3 5/
12
 to a improper fraction: 3 5/12 = 3 5/
12
 = 3 · 12 + 5/
12
 = 36 + 5/
12
 = 41/
12
To find a new numerator:
a) Multiply the whole number 3 by the denominator 12. Whole number 3 equally 3 * 12/
12
 = 36/
12
b) Add the answer from previous step 36 to the numerator 5. New numerator is 36 + 5 = 41
c) Write a previous answer (new numerator 41) over the denominator 12.
Three and five twelfths is forty-one twelfths
Subtract: 33/
4
 - 41/
12
 = 33 · 3/
4 · 3
 - 41/
12
 = 99/
12
 - 41/
12
 = 99 - 41/
12
 = 58/
12
 = 2 · 29/
2 · 6
 = 29/
6