Add 20/84 and 56/30
1st number: 20/84, 2nd number: 1 26/30
20/84 + 56/30 is 221/105.
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,
20/84 = 20 × 5/84 × 5 = 100/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
56/30 = 56 × 14/30 × 14 = 784/420 - Add the two like fractions:
100/420 + 784/420 = 100 + 784/420 = 884/420 - 884/420 simplified gives 221/105
- So, 20/84 + 56/30 = 221/105
In mixed form: 211/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+56/30 20/84+56/60 60/84+56/30 20/84+56/90