Add 72/60 and 3/7
1st number: 1 12/60, 2nd number: 3/7
72/60 + 3/7 is 57/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
72/60 = 72 × 7/60 × 7 = 504/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
3/7 = 3 × 60/7 × 60 = 180/420 - Add the two like fractions:
504/420 + 180/420 = 504 + 180/420 = 684/420 - 684/420 simplified gives 57/35
- So, 72/60 + 3/7 = 57/35
In mixed form: 122/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/60+6/7 72/60+3/14 72/60+9/7 72/60+3/21 72/60+15/7 72/60+3/35 72/60+21/7 72/60+3/49