Add 30/84 and 6/30
30/84 + 6/30 is 39/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
6/30 = 6 × 14/30 × 14 = 84/420 - Add the two like fractions:
150/420 + 84/420 = 150 + 84/420 = 234/420 - 234/420 simplified gives 39/70
- So, 30/84 + 6/30 = 39/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+6/30 30/84+12/30 30/84+6/60 90/84+6/30 30/84+18/30 30/84+6/90 30/84+42/30