Add 14/30 and 56/21
1st number: 14/30, 2nd number: 2 14/21
14/30 + 56/21 is 47/15.
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,
14/30 = 14 × 7/30 × 7 = 98/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
56/21 = 56 × 10/21 × 10 = 560/210 - Add the two like fractions:
98/210 + 560/210 = 98 + 560/210 = 658/210 - 658/210 simplified gives 47/15
- So, 14/30 + 56/21 = 47/15
In mixed form: 32/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/30+56/21 14/60+56/21 14/30+56/42 42/30+56/21 14/90+56/21 14/30+56/63 70/30+56/21 98/30+56/21