Add 6/28 and 42/30
1st number: 6/28, 2nd number: 1 12/30
6/28 + 42/30 is 113/70.
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,
6/28 = 6 × 15/28 × 15 = 90/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
42/30 = 42 × 14/30 × 14 = 588/420 - Add the two like fractions:
90/420 + 588/420 = 90 + 588/420 = 678/420 - 678/420 simplified gives 113/70
- So, 6/28 + 42/30 = 113/70
In mixed form: 143/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28+42/30 6/28+84/30 6/56+42/30 6/28+42/60 18/28+42/30 6/84+42/30 6/28+42/90 30/28+42/30 42/28+42/30