Add 27/42 and 7/54
27/42 + 7/54 is 146/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
27/42 = 27 × 9/42 × 9 = 243/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
7/54 = 7 × 7/54 × 7 = 49/378 - Add the two like fractions:
243/378 + 49/378 = 243 + 49/378 = 292/378 - 292/378 simplified gives 146/189
- So, 27/42 + 7/54 = 146/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42+7/54 27/42+14/54 27/84+7/54 81/42+7/54 27/42+21/54 27/42+35/54 27/42+49/54