Subtract 28/3 from 7/30
1st number: 7/30, 2nd number: 9 1/3
7/30 - 28/3 is -91/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
7/30 = 7 × 1/30 × 1 = 7/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
28/3 = 28 × 10/3 × 10 = 280/30 - Subtract the two like fractions:
7/30 - 280/30 = 7 - 280/30 = -273/30 - After reducing the fraction, the answer is -91/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-28/3 7/30-56/3 7/60-28/3 7/30-28/6 21/30-28/3 7/30-84/3 7/90-28/3 7/30-28/9 35/30-28/3 7/30-28/15 49/30-28/3 7/30-28/21