Subtract 9/30 from 10/28
10/28 - 9/30 is 2/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
10/28 = 10 × 15/28 × 15 = 150/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
9/30 = 9 × 14/30 × 14 = 126/420 - Subtract the two like fractions:
150/420 - 126/420 = 150 - 126/420 = 24/420 - After reducing the fraction, the answer is 2/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28-9/30 10/28-18/30 10/56-9/30 10/28-9/60 30/28-9/30 10/28-27/30 10/84-9/30 10/28-9/90 50/28-9/30 10/28-45/30 70/28-9/30 10/28-63/30