Add 15/36 and 30/15
1st number: 15/36, 2nd number: 2 0/15
15/36 + 30/15 is 29/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 15 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
15/36 = 15 × 5/36 × 5 = 75/180 - Likewise, for the 2nd fraction, since 15 × 12 = 180,
30/15 = 30 × 12/15 × 12 = 360/180 - Add the two like fractions:
75/180 + 360/180 = 75 + 360/180 = 435/180 - 435/180 simplified gives 29/12
- So, 15/36 + 30/15 = 29/12
In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/36+30/15 15/36+60/15 15/72+30/15 45/36+30/15 15/36+90/15 15/36+30/45 75/36+30/15 15/36+30/75