Add 70/15 and 6/20
1st number: 4 10/15, 2nd number: 6/20
70/15 + 6/20 is 149/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
70/15 = 70 × 4/15 × 4 = 280/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
6/20 = 6 × 3/20 × 3 = 18/60 - Add the two like fractions:
280/60 + 18/60 = 280 + 18/60 = 298/60 - 298/60 simplified gives 149/30
- So, 70/15 + 6/20 = 149/30
In mixed form: 429/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+12/20 70/30+6/20 70/15+6/40 70/15+18/20 70/45+6/20 70/15+6/60 70/15+30/20 70/75+6/20 70/15+42/20