Add 21/36 and 5/49
21/36 + 5/49 is 403/588.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 49 is 1764
Next, find the equivalent fraction of both fractional numbers with denominator 1764 - For the 1st fraction, since 36 × 49 = 1764,
21/36 = 21 × 49/36 × 49 = 1029/1764 - Likewise, for the 2nd fraction, since 49 × 36 = 1764,
5/49 = 5 × 36/49 × 36 = 180/1764 - Add the two like fractions:
1029/1764 + 180/1764 = 1029 + 180/1764 = 1209/1764 - 1209/1764 simplified gives 403/588
- So, 21/36 + 5/49 = 403/588
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36+5/49 21/36+10/49 21/72+5/49 21/36+5/98 63/36+5/49 21/36+15/49 21/36+25/49 21/36+35/49