Subtract 10/28 from 25/30
25/30 - 10/28 is 10/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
25/30 = 25 × 14/30 × 14 = 350/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
10/28 = 10 × 15/28 × 15 = 150/420 - Subtract the two like fractions:
350/420 - 150/420 = 350 - 150/420 = 200/420 - After reducing the fraction, the answer is 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30-10/28 25/30-20/28 25/60-10/28 25/30-10/56 75/30-10/28 25/30-30/28 25/90-10/28 25/30-10/84 25/30-50/28 25/30-70/28