Add 60/72 and 21/15
1st number: 60/72, 2nd number: 1 6/15
60/72 + 21/15 is 67/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
60/72 = 60 × 5/72 × 5 = 300/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
21/15 = 21 × 24/15 × 24 = 504/360 - Add the two like fractions:
300/360 + 504/360 = 300 + 504/360 = 804/360 - 804/360 simplified gives 67/30
- So, 60/72 + 21/15 = 67/30
In mixed form: 27/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+42/15 60/72+21/30 60/72+63/15 60/72+21/45 60/72+21/75