Add 21/56 and 84/25
1st number: 21/56, 2nd number: 3 9/25
21/56 + 84/25 is 747/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 25 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 56 × 25 = 1400,
21/56 = 21 × 25/56 × 25 = 525/1400 - Likewise, for the 2nd fraction, since 25 × 56 = 1400,
84/25 = 84 × 56/25 × 56 = 4704/1400 - Add the two like fractions:
525/1400 + 4704/1400 = 525 + 4704/1400 = 5229/1400 - 5229/1400 simplified gives 747/200
- So, 21/56 + 84/25 = 747/200
In mixed form: 3147/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56+84/25 21/56+84/50 63/56+84/25 21/56+84/75