Add 54/27 and 54/42
1st number: 2 0/27, 2nd number: 1 12/42
54/27 + 54/42 is 23/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
54/27 = 54 × 14/27 × 14 = 756/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
54/42 = 54 × 9/42 × 9 = 486/378 - Add the two like fractions:
756/378 + 486/378 = 756 + 486/378 = 1242/378 - 1242/378 simplified gives 23/7
- So, 54/27 + 54/42 = 23/7
In mixed form: 32/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/27+54/84 54/81+54/42