Add 15/9 and 15/45
1st number: 1 6/9, 2nd number: 15/45
15/9 + 15/45 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
15/9 = 15 × 5/9 × 5 = 75/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
15/45 = 15 × 1/45 × 1 = 15/45 - Add the two like fractions:
75/45 + 15/45 = 75 + 15/45 = 90/45 - 90/45 simplified gives 2/1
- So, 15/9 + 15/45 = 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+15/45 15/9+30/45 15/18+15/45 15/9+15/90 45/9+15/45 15/27+15/45 75/9+15/45 15/9+75/45 15/45+15/45 15/63+15/45