Subtract 27/90 from 56/12
1st number: 4 8/12, 2nd number: 27/90
56/12 - 27/90 is 131/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
56/12 = 56 × 15/12 × 15 = 840/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
27/90 = 27 × 2/90 × 2 = 54/180 - Subtract the two like fractions:
840/180 - 54/180 = 840 - 54/180 = 786/180 - After reducing the fraction, the answer is 131/30
- In mixed form: 411/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-54/90 56/24-27/90 56/12-81/90 56/36-27/90 56/60-27/90 56/84-27/90