Add 48/42 and 18/27
1st number: 1 6/42, 2nd number: 18/27
48/42 + 18/27 is 38/21.
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,
48/42 = 48 × 9/42 × 9 = 432/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
18/27 = 18 × 14/27 × 14 = 252/378 - Add the two like fractions:
432/378 + 252/378 = 432 + 252/378 = 684/378 - 684/378 simplified gives 38/21
- So, 48/42 + 18/27 = 38/21
In mixed form: 117/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/42+18/27 48/42+36/27 48/84+18/27 48/42+18/54 48/42+54/27 48/42+18/81 48/42+90/27