Add 72/42 and 7/60
1st number: 1 30/42, 2nd number: 7/60
72/42 + 7/60 is 769/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
72/42 = 72 × 10/42 × 10 = 720/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
7/60 = 7 × 7/60 × 7 = 49/420 - Add the two like fractions:
720/420 + 49/420 = 720 + 49/420 = 769/420 - So, 72/42 + 7/60 = 769/420
In mixed form: 1349/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42+14/60 72/84+7/60 72/42+21/60 72/42+35/60 72/42+49/60