Add 21/48 and 21/54
21/48 + 21/54 is 119/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 54 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 48 × 9 = 432,
21/48 = 21 × 9/48 × 9 = 189/432 - Likewise, for the 2nd fraction, since 54 × 8 = 432,
21/54 = 21 × 8/54 × 8 = 168/432 - Add the two like fractions:
189/432 + 168/432 = 189 + 168/432 = 357/432 - 357/432 simplified gives 119/144
- So, 21/48 + 21/54 = 119/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48+21/54 21/48+42/54 21/96+21/54 63/48+21/54 21/48+63/54