Add 15/42 and 49/27
1st number: 15/42, 2nd number: 1 22/27
15/42 + 49/27 is 821/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
15/42 = 15 × 9/42 × 9 = 135/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
49/27 = 49 × 14/27 × 14 = 686/378 - Add the two like fractions:
135/378 + 686/378 = 135 + 686/378 = 821/378 - So, 15/42 + 49/27 = 821/378
In mixed form: 265/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42+49/27 15/42+98/27 15/84+49/27 15/42+49/54 45/42+49/27 15/42+49/81 75/42+49/27