Subtract 10/90 from 6/12
6/12 - 10/90 is 7/18.
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,
6/12 = 6 × 15/12 × 15 = 90/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
10/90 = 10 × 2/90 × 2 = 20/180 - Subtract the two like fractions:
90/180 - 20/180 = 90 - 20/180 = 70/180 - After reducing the fraction, the answer is 7/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-20/90 6/24-10/90 18/12-10/90 6/12-30/90 6/36-10/90 30/12-10/90 6/12-50/90 6/60-10/90 42/12-10/90 6/12-70/90 6/84-10/90