Subtract 4/28 from 7/30
7/30 - 4/28 is 19/210.
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,
7/30 = 7 × 14/30 × 14 = 98/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
4/28 = 4 × 15/28 × 15 = 60/420 - Subtract the two like fractions:
98/420 - 60/420 = 98 - 60/420 = 38/420 - After reducing the fraction, the answer is 19/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-4/28 7/30-8/28 7/60-4/28 7/30-4/56 21/30-4/28 7/30-12/28 7/90-4/28 7/30-4/84 35/30-4/28 7/30-20/28 49/30-4/28