Add 48/21 and 63/54
1st number: 2 6/21, 2nd number: 1 9/54
48/21 + 63/54 is 145/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
48/21 = 48 × 18/21 × 18 = 864/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
63/54 = 63 × 7/54 × 7 = 441/378 - Add the two like fractions:
864/378 + 441/378 = 864 + 441/378 = 1305/378 - 1305/378 simplified gives 145/42
- So, 48/21 + 63/54 = 145/42
In mixed form: 319/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/21+63/54 48/42+63/54 48/63+63/54