Add 21/48 and 12/28
21/48 + 12/28 is 97/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 28 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Likewise, for the 2nd fraction, since 28 × 12 = 336,
12/28 = 12 × 12/28 × 12 = 144/336 - Add the two like fractions:
147/336 + 144/336 = 147 + 144/336 = 291/336 - 291/336 simplified gives 97/112
- So, 21/48 + 12/28 = 97/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48+12/28 21/48+24/28 21/96+12/28 21/48+12/56 63/48+12/28 21/48+36/28 21/48+12/84 21/48+60/28 21/48+84/28