Add 9/15 and 64/45
1st number: 9/15, 2nd number: 1 19/45
9/15 + 64/45 is 91/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
9/15 = 9 × 3/15 × 3 = 27/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
64/45 = 64 × 1/45 × 1 = 64/45 - Add the two like fractions:
27/45 + 64/45 = 27 + 64/45 = 91/45 - So, 9/15 + 64/45 = 91/45
In mixed form: 21/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+64/45 9/30+64/45 9/15+64/90 27/15+64/45 9/45+64/45 45/15+64/45 9/75+64/45 63/15+64/45