Add 30/15 and 15/7
1st number: 2 0/15, 2nd number: 2 1/7
30/15 + 15/7 is 29/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
30/15 = 30 × 7/15 × 7 = 210/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
15/7 = 15 × 15/7 × 15 = 225/105 - Add the two like fractions:
210/105 + 225/105 = 210 + 225/105 = 435/105 - 435/105 simplified gives 29/7
- So, 30/15 + 15/7 = 29/7
In mixed form: 41/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+15/7 30/15+30/7 30/15+15/14 90/15+15/7 30/15+45/7 30/45+15/7 30/15+15/21 30/15+75/7 30/75+15/7 30/15+15/35 30/15+15/49