Add 21/49 and 18/48
21/49 + 18/48 is 45/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 48 is 2352
Next, find the equivalent fraction of both fractional numbers with denominator 2352 - For the 1st fraction, since 49 × 48 = 2352,
21/49 = 21 × 48/49 × 48 = 1008/2352 - Likewise, for the 2nd fraction, since 48 × 49 = 2352,
18/48 = 18 × 49/48 × 49 = 882/2352 - Add the two like fractions:
1008/2352 + 882/2352 = 1008 + 882/2352 = 1890/2352 - 1890/2352 simplified gives 45/56
- So, 21/49 + 18/48 = 45/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49+18/48 21/49+36/48 21/98+18/48 21/49+18/96 63/49+18/48 21/49+54/48 21/49+90/48