Add 70/21 and 56/6
1st number: 3 7/21, 2nd number: 9 2/6
70/21 + 56/6 is 38/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
70/21 = 70 × 2/21 × 2 = 140/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
56/6 = 56 × 7/6 × 7 = 392/42 - Add the two like fractions:
140/42 + 392/42 = 140 + 392/42 = 532/42 - 532/42 simplified gives 38/3
- So, 70/21 + 56/6 = 38/3
In mixed form: 122/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+56/6 70/21+56/12 70/63+56/6 70/21+56/18 70/21+56/30 70/21+56/42