Add 20/63 and 18/84
20/63 + 18/84 is 67/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
18/84 = 18 × 3/84 × 3 = 54/252 - Add the two like fractions:
80/252 + 54/252 = 80 + 54/252 = 134/252 - 134/252 simplified gives 67/126
- So, 20/63 + 18/84 = 67/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/63+18/84 20/63+36/84 60/63+18/84 20/63+54/84 20/63+90/84