Add 4/21 and 27/48
4/21 + 27/48 is 253/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
4/21 = 4 × 16/21 × 16 = 64/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
27/48 = 27 × 7/48 × 7 = 189/336 - Add the two like fractions:
64/336 + 189/336 = 64 + 189/336 = 253/336 - So, 4/21 + 27/48 = 253/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21+27/48 4/21+54/48 4/42+27/48 4/21+27/96 12/21+27/48 4/21+81/48 4/63+27/48 20/21+27/48 28/21+27/48