Add 2/84 and 20/30
2/84 + 20/30 is 29/42.
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,
2/84 = 2 × 5/84 × 5 = 10/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
20/30 = 20 × 14/30 × 14 = 280/420 - Add the two like fractions:
10/420 + 280/420 = 10 + 280/420 = 290/420 - 290/420 simplified gives 29/42
- So, 2/84 + 20/30 = 29/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84+20/30 2/84+40/30 2/84+20/60 6/84+20/30 2/84+60/30 2/84+20/90 10/84+20/30 14/84+20/30