Add 3/28 and 7/30
3/28 + 7/30 is 143/420.
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,
7/30 = 7 × 14/30 × 14 = 98/420 - Add the two like fractions:
45/420 + 98/420 = 45 + 98/420 = 143/420 - So, 3/28 + 7/30 = 143/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+7/30 3/28+14/30 3/56+7/30 3/28+7/60 9/28+7/30 3/28+21/30 3/84+7/30 3/28+7/90 15/28+7/30 3/28+35/30 21/28+7/30 3/28+49/30