Add 18/15 and 10/30
1st number: 1 3/15, 2nd number: 10/30
18/15 + 10/30 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
18/15 = 18 × 2/15 × 2 = 36/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
10/30 = 10 × 1/30 × 1 = 10/30 - Add the two like fractions:
36/30 + 10/30 = 36 + 10/30 = 46/30 - 46/30 simplified gives 23/15
- So, 18/15 + 10/30 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+10/30 18/15+20/30 18/30+10/30 18/15+10/60 54/15+10/30 18/45+10/30 18/15+10/90 90/15+10/30 18/15+50/30 18/75+10/30 18/15+70/30