Subtract 10/28 from 90/10
1st number: 9 0/10, 2nd number: 10/28
90/10 - 10/28 is 121/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
90/10 = 90 × 14/10 × 14 = 1260/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
10/28 = 10 × 5/28 × 5 = 50/140 - Subtract the two like fractions:
1260/140 - 50/140 = 1260 - 50/140 = 1210/140 - After reducing the fraction, the answer is 121/14
- In mixed form: 89/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10-20/28 90/20-10/28 90/10-10/56 90/10-30/28 90/30-10/28 90/10-10/84 90/10-50/28 90/50-10/28 90/10-70/28 90/70-10/28