Subtract 12/42 from 49/27
1st number: 1 22/27, 2nd number: 12/42
49/27 - 12/42 is 289/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
49/27 = 49 × 14/27 × 14 = 686/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
12/42 = 12 × 9/42 × 9 = 108/378 - Subtract the two like fractions:
686/378 - 108/378 = 686 - 108/378 = 578/378 - After reducing the fraction, the answer is 289/189
- In mixed form: 1100/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/27-12/42 49/27-24/42 49/54-12/42 49/27-12/84 49/27-36/42 49/81-12/42 49/27-60/42 49/27-84/42