Add 21/14 and 14/70
1st number: 1 7/14, 2nd number: 14/70
21/14 + 14/70 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
14/70 = 14 × 1/70 × 1 = 14/70 - Add the two like fractions:
105/70 + 14/70 = 105 + 14/70 = 119/70 - 119/70 simplified gives 17/10
- So, 21/14 + 14/70 = 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: 42/14+14/70 21/14+28/70 21/28+14/70 63/14+14/70 21/14+42/70 21/42+14/70 21/70+14/70 21/14+98/70 21/98+14/70