Add 14/70 and 21/9
1st number: 14/70, 2nd number: 2 3/9
14/70 + 21/9 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
14/70 = 14 × 9/70 × 9 = 126/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
21/9 = 21 × 70/9 × 70 = 1470/630 - Add the two like fractions:
126/630 + 1470/630 = 126 + 1470/630 = 1596/630 - 1596/630 simplified gives 38/15
- So, 14/70 + 21/9 = 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+21/9 14/70+42/9 14/70+21/18 42/70+21/9 14/70+63/9 14/70+21/27 14/70+21/45 98/70+21/9 14/70+21/63