Add 12/42 and 2/27
12/42 + 2/27 is 68/189.
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,
12/42 = 12 × 9/42 × 9 = 108/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
2/27 = 2 × 14/27 × 14 = 28/378 - Add the two like fractions:
108/378 + 28/378 = 108 + 28/378 = 136/378 - 136/378 simplified gives 68/189
- So, 12/42 + 2/27 = 68/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+2/27 12/42+4/27 12/84+2/27 12/42+2/54 36/42+2/27 12/42+6/27 12/42+2/81 60/42+2/27 12/42+10/27 84/42+2/27 12/42+14/27