Add 12/60 and 21/14
1st number: 12/60, 2nd number: 1 7/14
12/60 + 21/14 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 14 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
12/60 = 12 × 7/60 × 7 = 84/420 - Likewise, for the 2nd fraction, since 14 × 30 = 420,
21/14 = 21 × 30/14 × 30 = 630/420 - Add the two like fractions:
84/420 + 630/420 = 84 + 630/420 = 714/420 - 714/420 simplified gives 17/10
- So, 12/60 + 21/14 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/60+21/14 12/60+42/14 12/60+21/28 36/60+21/14 12/60+63/14 12/60+21/42 12/60+21/70 84/60+21/14 12/60+21/98