Add 18/15 and 14/72
1st number: 1 3/15, 2nd number: 14/72
18/15 + 14/72 is 251/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
18/15 = 18 × 24/15 × 24 = 432/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
14/72 = 14 × 5/72 × 5 = 70/360 - Add the two like fractions:
432/360 + 70/360 = 432 + 70/360 = 502/360 - 502/360 simplified gives 251/180
- So, 18/15 + 14/72 = 251/180
In mixed form: 171/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+14/72 18/15+28/72 18/30+14/72 54/15+14/72 18/15+42/72 18/45+14/72 90/15+14/72 18/15+70/72 18/75+14/72 18/15+98/72