Add 27/30 and 56/21
1st number: 27/30, 2nd number: 2 14/21
27/30 + 56/21 is 107/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
27/30 = 27 × 7/30 × 7 = 189/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
56/21 = 56 × 10/21 × 10 = 560/210 - Add the two like fractions:
189/210 + 560/210 = 189 + 560/210 = 749/210 - 749/210 simplified gives 107/30
- So, 27/30 + 56/21 = 107/30
In mixed form: 317/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30+56/21 27/60+56/21 27/30+56/42 81/30+56/21 27/90+56/21 27/30+56/63