Add 27/3 and 24/21
1st number: 9 0/3, 2nd number: 1 3/21
27/3 + 24/21 is 71/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
27/3 = 27 × 7/3 × 7 = 189/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
24/21 = 24 × 1/21 × 1 = 24/21 - Add the two like fractions:
189/21 + 24/21 = 189 + 24/21 = 213/21 - 213/21 simplified gives 71/7
- So, 27/3 + 24/21 = 71/7
In mixed form: 101/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/3+24/21 27/3+48/21 27/6+24/21 27/3+24/42 81/3+24/21 27/3+72/21 27/9+24/21 27/3+24/63 27/15+24/21 27/21+24/21