Add 14/84 and 21/10
1st number: 14/84, 2nd number: 2 1/10
14/84 + 21/10 is 34/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
14/84 = 14 × 5/84 × 5 = 70/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
21/10 = 21 × 42/10 × 42 = 882/420 - Add the two like fractions:
70/420 + 882/420 = 70 + 882/420 = 952/420 - 952/420 simplified gives 34/15
- So, 14/84 + 21/10 = 34/15
In mixed form: 24/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84+21/10 14/84+42/10 14/84+21/20 42/84+21/10 14/84+63/10 14/84+21/30 70/84+21/10 14/84+21/50 98/84+21/10 14/84+21/70