Subtract 30/3 from 8/28
1st number: 8/28, 2nd number: 10 0/3
8/28 - 30/3 is -68/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
8/28 = 8 × 3/28 × 3 = 24/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
30/3 = 30 × 28/3 × 28 = 840/84 - Subtract the two like fractions:
24/84 - 840/84 = 24 - 840/84 = -816/84 - After reducing the fraction, the answer is -68/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28-30/3 8/28-60/3 8/56-30/3 8/28-30/6 24/28-30/3 8/28-90/3 8/84-30/3 8/28-30/9 40/28-30/3 8/28-30/15 56/28-30/3 8/28-30/21