Add 28/27 and 3/42
1st number: 1 1/27, 2nd number: 3/42
28/27 + 3/42 is 419/378.
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,
28/27 = 28 × 14/27 × 14 = 392/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
3/42 = 3 × 9/42 × 9 = 27/378 - Add the two like fractions:
392/378 + 27/378 = 392 + 27/378 = 419/378 - So, 28/27 + 3/42 = 419/378
In mixed form: 141/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/27+3/42 28/27+6/42 28/54+3/42 28/27+3/84 84/27+3/42 28/27+9/42 28/81+3/42 28/27+15/42 28/27+21/42