To convert 3 1/2 to a fraction, you would multiply the whole number, (3), by the denominator, (2), and add your sum to the numerator, (1). Your total would be 7/2. You would then follow the same steps for 9 7/8. Multiply 9 times 8 and get 72, then add 7 and your total is 79/8.
*The denominator stays the same in your final answer
To convert mixed numbers to improper fractions, multiply the whole number by the denominator, add the numerator, and write the result over the original denominator. For example, 3 2 1 becomes 2 7 and 9 8 7 becomes 8 79 .
;