Add 10/84 and 3/20
10/84 + 3/20 is 113/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
10/84 = 10 × 5/84 × 5 = 50/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
3/20 = 3 × 21/20 × 21 = 63/420 - Add the two like fractions:
50/420 + 63/420 = 50 + 63/420 = 113/420 - So, 10/84 + 3/20 = 113/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/84+3/20 10/84+6/20 10/84+3/40 30/84+3/20 10/84+9/20 10/84+3/60 50/84+3/20 10/84+15/20 70/84+3/20 10/84+21/20