Add 15/18 and 1/20
15/18 + 1/20 is 53/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
15/18 = 15 × 10/18 × 10 = 150/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Add the two like fractions:
150/180 + 9/180 = 150 + 9/180 = 159/180 - 159/180 simplified gives 53/60
- So, 15/18 + 1/20 = 53/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+1/20 15/18+2/20 15/36+1/20 15/18+1/40 45/18+1/20 15/18+3/20 15/54+1/20 15/18+1/60 75/18+1/20 15/18+5/20 15/90+1/20 15/18+7/20