Add 42/28 and 6/30
1st number: 1 14/28, 2nd number: 6/30
42/28 + 6/30 is 17/10.
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,
42/28 = 42 × 15/28 × 15 = 630/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
6/30 = 6 × 14/30 × 14 = 84/420 - Add the two like fractions:
630/420 + 84/420 = 630 + 84/420 = 714/420 - 714/420 simplified gives 17/10
- So, 42/28 + 6/30 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+6/30 42/28+12/30 42/56+6/30 42/28+6/60 42/28+18/30 42/84+6/30 42/28+6/90 42/28+42/30