Subtract 30/56 from 5/12
5/12 - 30/56 is -5/42.
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,
5/12 = 5 × 14/12 × 14 = 70/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
30/56 = 30 × 3/56 × 3 = 90/168 - Subtract the two like fractions:
70/168 - 90/168 = 70 - 90/168 = -20/168 - After reducing the fraction, the answer is -5/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/12-30/56 5/12-60/56 5/24-30/56 15/12-30/56 5/12-90/56 5/36-30/56 25/12-30/56 5/60-30/56 35/12-30/56 5/84-30/56