Add 48/21 and 56/54
1st number: 2 6/21, 2nd number: 1 2/54
48/21 + 56/54 is 628/189.
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,
56/54 = 56 × 7/54 × 7 = 392/378 - Add the two like fractions:
864/378 + 392/378 = 864 + 392/378 = 1256/378 - 1256/378 simplified gives 628/189
- So, 48/21 + 56/54 = 628/189
In mixed form: 361/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/21+56/54 48/42+56/54 48/63+56/54