Add 3/15 and 42/36
1st number: 3/15, 2nd number: 1 6/36
3/15 + 42/36 is 41/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
3/15 = 3 × 12/15 × 12 = 36/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180 - Add the two like fractions:
36/180 + 210/180 = 36 + 210/180 = 246/180 - 246/180 simplified gives 41/30
- So, 3/15 + 42/36 = 41/30
In mixed form: 111/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15+42/36 3/15+84/36 3/30+42/36 3/15+42/72 9/15+42/36 3/45+42/36 3/75+42/36 21/15+42/36