Add 63/20 and 54/84
1st number: 3 3/20, 2nd number: 54/84
63/20 + 54/84 is 531/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
63/20 = 63 × 21/20 × 21 = 1323/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
54/84 = 54 × 5/84 × 5 = 270/420 - Add the two like fractions:
1323/420 + 270/420 = 1323 + 270/420 = 1593/420 - 1593/420 simplified gives 531/140
- So, 63/20 + 54/84 = 531/140
In mixed form: 3111/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+54/84 63/60+54/84