Add 20/7 and 63/54
1st number: 2 6/7, 2nd number: 1 9/54
20/7 + 63/54 is 169/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
20/7 = 20 × 54/7 × 54 = 1080/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
63/54 = 63 × 7/54 × 7 = 441/378 - Add the two like fractions:
1080/378 + 441/378 = 1080 + 441/378 = 1521/378 - 1521/378 simplified gives 169/42
- So, 20/7 + 63/54 = 169/42
In mixed form: 41/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+63/54 20/14+63/54 60/7+63/54 20/21+63/54 20/35+63/54 20/49+63/54