Subtract 8/90 from 8/28
8/28 - 8/90 is 62/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
8/28 = 8 × 45/28 × 45 = 360/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
8/90 = 8 × 14/90 × 14 = 112/1260 - Subtract the two like fractions:
360/1260 - 112/1260 = 360 - 112/1260 = 248/1260 - After reducing the fraction, the answer is 62/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28-8/90 8/28-16/90 8/56-8/90 24/28-8/90 8/28-24/90 8/84-8/90 40/28-8/90 8/28-40/90 56/28-8/90 8/28-56/90