Add 72/6 and 18/15
1st number: 12 0/6, 2nd number: 1 3/15
72/6 + 18/15 is 66/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
72/6 = 72 × 5/6 × 5 = 360/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
18/15 = 18 × 2/15 × 2 = 36/30 - Add the two like fractions:
360/30 + 36/30 = 360 + 36/30 = 396/30 - 396/30 simplified gives 66/5
- So, 72/6 + 18/15 = 66/5
In mixed form: 131/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/6+36/15 72/12+18/15 72/6+18/30 72/6+54/15 72/18+18/15 72/6+18/45 72/6+90/15 72/30+18/15 72/6+18/75 72/42+18/15