Add 56/21 and 3/30
1st number: 2 14/21, 2nd number: 3/30
56/21 + 3/30 is 83/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
56/21 = 56 × 10/21 × 10 = 560/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
3/30 = 3 × 7/30 × 7 = 21/210 - Add the two like fractions:
560/210 + 21/210 = 560 + 21/210 = 581/210 - 581/210 simplified gives 83/30
- So, 56/21 + 3/30 = 83/30
In mixed form: 223/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21+6/30 56/42+3/30 56/21+3/60 56/21+9/30 56/63+3/30 56/21+3/90 56/21+15/30 56/21+21/30