Add 3/28 and 27/30
3/28 + 27/30 is 141/140.
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,
3/28 = 3 × 15/28 × 15 = 45/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
27/30 = 27 × 14/30 × 14 = 378/420 - Add the two like fractions:
45/420 + 378/420 = 45 + 378/420 = 423/420 - 423/420 simplified gives 141/140
- So, 3/28 + 27/30 = 141/140
In mixed form: 11/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+27/30 3/28+54/30 3/56+27/30 3/28+27/60 9/28+27/30 3/28+81/30 3/84+27/30 3/28+27/90 15/28+27/30 21/28+27/30