Add 4/70 and 21/9
1st number: 4/70, 2nd number: 2 3/9
4/70 + 21/9 is 251/105.
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,
4/70 = 4 × 9/70 × 9 = 36/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
21/9 = 21 × 70/9 × 70 = 1470/630 - Add the two like fractions:
36/630 + 1470/630 = 36 + 1470/630 = 1506/630 - 1506/630 simplified gives 251/105
- So, 4/70 + 21/9 = 251/105
In mixed form: 241/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70+21/9 4/70+42/9 4/70+21/18 12/70+21/9 4/70+63/9 4/70+21/27 20/70+21/9 4/70+21/45 28/70+21/9 4/70+21/63