Add 18/60 and 15/28
18/60 + 15/28 is 117/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
18/60 = 18 × 7/60 × 7 = 126/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
15/28 = 15 × 15/28 × 15 = 225/420 - Add the two like fractions:
126/420 + 225/420 = 126 + 225/420 = 351/420 - 351/420 simplified gives 117/140
- So, 18/60 + 15/28 = 117/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/60+15/28 18/60+30/28 18/60+15/56 54/60+15/28 18/60+45/28 18/60+15/84 90/60+15/28 18/60+75/28