Subtract 6/4 from 90/12
1st number: 7 6/12, 2nd number: 1 2/4
90/12 - 6/4 is 6/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
90/12 = 90 × 1/12 × 1 = 90/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
6/4 = 6 × 3/4 × 3 = 18/12 - Subtract the two like fractions:
90/12 - 18/12 = 90 - 18/12 = 72/12 - After reducing the fraction, the answer is 6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-12/4 90/24-6/4 90/12-6/8 90/12-18/4 90/36-6/4 90/12-6/12 90/12-30/4 90/60-6/4 90/12-6/20 90/12-42/4 90/84-6/4 90/12-6/28