Subtract 20/4 from 25/28
1st number: 25/28, 2nd number: 5 0/4
25/28 - 20/4 is -115/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
25/28 = 25 × 1/28 × 1 = 25/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
20/4 = 20 × 7/4 × 7 = 140/28 - Subtract the two like fractions:
25/28 - 140/28 = 25 - 140/28 = -115/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28-20/4 25/28-40/4 25/56-20/4 25/28-20/8 75/28-20/4 25/28-60/4 25/84-20/4 25/28-20/12 25/28-20/28