Subtract 20/14 from 30/28
1st number: 1 2/28, 2nd number: 1 6/14
30/28 - 20/14 is -5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
30/28 = 30 × 1/28 × 1 = 30/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
20/14 = 20 × 2/14 × 2 = 40/28 - Subtract the two like fractions:
30/28 - 40/28 = 30 - 40/28 = -10/28 - After reducing the fraction, the answer is -5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-20/14 30/28-40/14 30/56-20/14 30/28-20/28 90/28-20/14 30/28-60/14 30/84-20/14 30/28-20/42 30/28-20/70 30/28-20/98