Add 18/48 and 21/28
18/48 + 21/28 is 9/8.
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,
18/48 = 18 × 7/48 × 7 = 126/336 - Likewise, for the 2nd fraction, since 28 × 12 = 336,
21/28 = 21 × 12/28 × 12 = 252/336 - Add the two like fractions:
126/336 + 252/336 = 126 + 252/336 = 378/336 - 378/336 simplified gives 9/8
- So, 18/48 + 21/28 = 9/8
In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/48+21/28 18/48+42/28 18/96+21/28 18/48+21/56 54/48+21/28 18/48+63/28 18/48+21/84 90/48+21/28