Add 25/21 and 27/4
1st number: 1 4/21, 2nd number: 6 3/4
25/21 + 27/4 is 667/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
25/21 = 25 × 4/21 × 4 = 100/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
27/4 = 27 × 21/4 × 21 = 567/84 - Add the two like fractions:
100/84 + 567/84 = 100 + 567/84 = 667/84 - So, 25/21 + 27/4 = 667/84
In mixed form: 779/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21+27/4 25/21+54/4 25/42+27/4 25/21+27/8 75/21+27/4 25/21+81/4 25/63+27/4 25/21+27/12 25/21+27/20 25/21+27/28