Add 4/70 and 56/21
1st number: 4/70, 2nd number: 2 14/21
4/70 + 56/21 is 286/105.
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,
4/70 = 4 × 3/70 × 3 = 12/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
56/21 = 56 × 10/21 × 10 = 560/210 - Add the two like fractions:
12/210 + 560/210 = 12 + 560/210 = 572/210 - 572/210 simplified gives 286/105
- So, 4/70 + 56/21 = 286/105
In mixed form: 276/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70+56/21 4/70+56/42 12/70+56/21 4/70+56/63 20/70+56/21 28/70+56/21