Add 12/72 and 18/15
1st number: 12/72, 2nd number: 1 3/15
12/72 + 18/15 is 41/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
18/15 = 18 × 24/15 × 24 = 432/360 - Add the two like fractions:
60/360 + 432/360 = 60 + 432/360 = 492/360 - 492/360 simplified gives 41/30
- So, 12/72 + 18/15 = 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: 24/72+18/15 12/72+36/15 12/72+18/30 36/72+18/15 12/72+54/15 12/72+18/45 60/72+18/15 12/72+90/15 12/72+18/75 84/72+18/15