Add 21/25 and 63/48
1st number: 21/25, 2nd number: 1 15/48
21/25 + 63/48 is 861/400.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 48 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 25 × 48 = 1200,
21/25 = 21 × 48/25 × 48 = 1008/1200 - Likewise, for the 2nd fraction, since 48 × 25 = 1200,
63/48 = 63 × 25/48 × 25 = 1575/1200 - Add the two like fractions:
1008/1200 + 1575/1200 = 1008 + 1575/1200 = 2583/1200 - 2583/1200 simplified gives 861/400
- So, 21/25 + 63/48 = 861/400
In mixed form: 261/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25+63/48 21/50+63/48 21/25+63/96 63/25+63/48 21/75+63/48