Add 12/42 and 50/54
12/42 + 50/54 is 229/189.
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,
12/42 = 12 × 9/42 × 9 = 108/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
50/54 = 50 × 7/54 × 7 = 350/378 - Add the two like fractions:
108/378 + 350/378 = 108 + 350/378 = 458/378 - 458/378 simplified gives 229/189
- So, 12/42 + 50/54 = 229/189
In mixed form: 140/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+50/54 12/84+50/54 36/42+50/54 60/42+50/54 84/42+50/54