4.
70
15
5.
14
6
ANSWERS
1. 1^15
2. 3^23
3. 1 133
4. 4^23
5. 2^13
Changing Mixed Numbers to
Improper Fractions
A mixed number can be changed to an equivalent improper fraction. For
example, 5^18 is equal to^418.
To change a mixed number to an improper fraction, multiply the whole
number by the denominator of the fraction and add the numerator of the frac-
tion to the product. Use this number for the numerator and use the same
denominator as the denominator of the improper fraction.
EXAMPLE
Change 7^23 to an improper fraction.
SOLUTION
Multiply 7 by 3, then add 2 to get 23, which is the numerator of the improper
fraction. Use 3 as the denominator of the improper fraction.
723 ¼3 7 þ 2
3¼
23
3
EXAMPLE
Change 9^45 to an improper fraction.
CHAPTER 3 Fractions: Part 1 45