Add 60/48 and 28/21
1st number: 1 12/48, 2nd number: 1 7/21
60/48 + 28/21 is 31/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
60/48 = 60 × 7/48 × 7 = 420/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
28/21 = 28 × 16/21 × 16 = 448/336 - Add the two like fractions:
420/336 + 448/336 = 420 + 448/336 = 868/336 - 868/336 simplified gives 31/12
- So, 60/48 + 28/21 = 31/12
In mixed form: 27/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/48+56/21 60/96+28/21 60/48+28/42 60/48+84/21 60/48+28/63