Add 70/15 and 21/6
1st number: 4 10/15, 2nd number: 3 3/6
70/15 + 21/6 is 49/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
70/15 = 70 × 2/15 × 2 = 140/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30 - Add the two like fractions:
140/30 + 105/30 = 140 + 105/30 = 245/30 - 245/30 simplified gives 49/6
- So, 70/15 + 21/6 = 49/6
In mixed form: 81/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+42/6 70/30+21/6 70/15+21/12 70/15+63/6 70/45+21/6 70/15+21/18 70/75+21/6 70/15+21/30 70/15+21/42