Subtract 81/56 from 30/12
1st number: 2 6/12, 2nd number: 1 25/56
30/12 - 81/56 is 59/56.
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,
30/12 = 30 × 14/12 × 14 = 420/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168 - Subtract the two like fractions:
420/168 - 243/168 = 420 - 243/168 = 177/168 - After reducing the fraction, the answer is 59/56
- In mixed form: 13/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-81/56 30/24-81/56 90/12-81/56 30/36-81/56 30/60-81/56 30/84-81/56