Add 72/60 and 7/70
1st number: 1 12/60, 2nd number: 7/70
72/60 + 7/70 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 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 70 × 6 = 420,
7/70 = 7 × 6/70 × 6 = 42/420 - Add the two like fractions:
504/420 + 42/420 = 504 + 42/420 = 546/420 - 546/420 simplified gives 13/10
- So, 72/60 + 7/70 = 13/10
In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/60+14/70 72/60+21/70 72/60+35/70 72/60+49/70