Subtract 4/28 from 10/30
10/30 - 4/28 is 4/21.
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,
10/30 = 10 × 14/30 × 14 = 140/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
4/28 = 4 × 15/28 × 15 = 60/420 - Subtract the two like fractions:
140/420 - 60/420 = 140 - 60/420 = 80/420 - After reducing the fraction, the answer is 4/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30-4/28 10/30-8/28 10/60-4/28 10/30-4/56 10/30-12/28 10/90-4/28 10/30-4/84 50/30-4/28 10/30-20/28 70/30-4/28