Add 20/84 and 3/63
20/84 + 3/63 is 2/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
3/63 = 3 × 4/63 × 4 = 12/252 - Add the two like fractions:
60/252 + 12/252 = 60 + 12/252 = 72/252 - 72/252 simplified gives 2/7
- So, 20/84 + 3/63 = 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+3/63 20/84+6/63 60/84+3/63 20/84+9/63 20/84+15/63 20/84+21/63