Subtract 90/56 from 2/12
1st number: 2/12, 2nd number: 1 34/56
2/12 - 90/56 is -121/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
2/12 = 2 × 14/12 × 14 = 28/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
90/56 = 90 × 3/56 × 3 = 270/168 - Subtract the two like fractions:
28/168 - 270/168 = 28 - 270/168 = -242/168 - After reducing the fraction, the answer is -121/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/12-90/56 2/24-90/56 6/12-90/56 2/36-90/56 10/12-90/56 2/60-90/56 14/12-90/56 2/84-90/56