Subtract 3/12 from 90/27
1st number: 3 9/27, 2nd number: 3/12
90/27 - 3/12 is 37/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
90/27 = 90 × 4/27 × 4 = 360/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
3/12 = 3 × 9/12 × 9 = 27/108 - Subtract the two like fractions:
360/108 - 27/108 = 360 - 27/108 = 333/108 - After reducing the fraction, the answer is 37/12
- In mixed form: 31/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27-6/12 90/54-3/12 90/27-3/24 90/27-9/12 90/81-3/12 90/27-3/36 90/27-15/12 90/27-3/60 90/27-21/12 90/27-3/84