Add 27/21 and 25/4
1st number: 1 6/21, 2nd number: 6 1/4
27/21 + 25/4 is 211/28.
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,
27/21 = 27 × 4/21 × 4 = 108/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
25/4 = 25 × 21/4 × 21 = 525/84 - Add the two like fractions:
108/84 + 525/84 = 108 + 525/84 = 633/84 - 633/84 simplified gives 211/28
- So, 27/21 + 25/4 = 211/28
In mixed form: 715/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+25/4 27/21+50/4 27/42+25/4 27/21+25/8 81/21+25/4 27/21+75/4 27/63+25/4 27/21+25/12 27/21+25/20 27/21+25/28