Add 2/28 and 15/30
2/28 + 15/30 is 4/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
2/28 = 2 × 15/28 × 15 = 30/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
15/30 = 15 × 14/30 × 14 = 210/420 - Add the two like fractions:
30/420 + 210/420 = 30 + 210/420 = 240/420 - 240/420 simplified gives 4/7
- So, 2/28 + 15/30 = 4/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/28+15/30 2/56+15/30 2/28+15/60 6/28+15/30 2/28+45/30 2/84+15/30 2/28+15/90 10/28+15/30 2/28+75/30 14/28+15/30