Add 1/30 and 21/14
1st number: 1/30, 2nd number: 1 7/14
1/30 + 21/14 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
1/30 = 1 × 7/30 × 7 = 7/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
21/14 = 21 × 15/14 × 15 = 315/210 - Add the two like fractions:
7/210 + 315/210 = 7 + 315/210 = 322/210 - 322/210 simplified gives 23/15
- So, 1/30 + 21/14 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30+21/14 1/30+42/14 1/60+21/14 1/30+21/28 3/30+21/14 1/30+63/14 1/90+21/14 1/30+21/42 5/30+21/14 1/30+21/70 7/30+21/14 1/30+21/98