Add 15/72 and 6/20
15/72 + 6/20 is 61/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
6/20 = 6 × 18/20 × 18 = 108/360 - Add the two like fractions:
75/360 + 108/360 = 75 + 108/360 = 183/360 - 183/360 simplified gives 61/120
- So, 15/72 + 6/20 = 61/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72+6/20 15/72+12/20 15/72+6/40 45/72+6/20 15/72+18/20 15/72+6/60 75/72+6/20 15/72+30/20 15/72+42/20