Subtract 8/21 from 75/28
1st number: 2 19/28, 2nd number: 8/21
75/28 - 8/21 is 193/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
75/28 = 75 × 3/28 × 3 = 225/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
8/21 = 8 × 4/21 × 4 = 32/84 - Subtract the two like fractions:
225/84 - 32/84 = 225 - 32/84 = 193/84 - In mixed form: 225/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/28-16/21 75/56-8/21 75/28-8/42 75/28-24/21 75/84-8/21 75/28-8/63 75/28-40/21 75/28-56/21