Subtract 90/28 from 3/10
1st number: 3/10, 2nd number: 3 6/28
3/10 - 90/28 is -102/35.
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,
3/10 = 3 × 14/10 × 14 = 42/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Subtract the two like fractions:
42/140 - 450/140 = 42 - 450/140 = -408/140 - After reducing the fraction, the answer is -102/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-90/28 3/20-90/28 3/10-90/56 9/10-90/28 3/30-90/28 3/10-90/84 15/10-90/28 3/50-90/28 21/10-90/28 3/70-90/28