Add 15/18 and 1/15
15/18 + 1/15 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
1/15 = 1 × 6/15 × 6 = 6/90 - Add the two like fractions:
75/90 + 6/90 = 75 + 6/90 = 81/90 - 81/90 simplified gives 9/10
- So, 15/18 + 1/15 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+1/15 15/18+2/15 15/36+1/15 15/18+1/30 45/18+1/15 15/18+3/15 15/54+1/15 15/18+1/45 75/18+1/15 15/18+5/15 15/90+1/15 15/18+1/75 15/18+7/15