Add 14/70 and 49/21
1st number: 14/70, 2nd number: 2 7/21
14/70 + 49/21 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
14/70 = 14 × 3/70 × 3 = 42/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
49/21 = 49 × 10/21 × 10 = 490/210 - Add the two like fractions:
42/210 + 490/210 = 42 + 490/210 = 532/210 - 532/210 simplified gives 38/15
- So, 14/70 + 49/21 = 38/15
In mixed form: 28/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/70+49/21 14/70+98/21 14/70+49/42 42/70+49/21 14/70+49/63 98/70+49/21