Subtract 36/28 from 5/20
1st number: 5/20, 2nd number: 1 8/28
5/20 - 36/28 is -29/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
5/20 = 5 × 7/20 × 7 = 35/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
36/28 = 36 × 5/28 × 5 = 180/140 - Subtract the two like fractions:
35/140 - 180/140 = 35 - 180/140 = -145/140 - After reducing the fraction, the answer is -29/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20-36/28 5/20-72/28 5/40-36/28 5/20-36/56 15/20-36/28 5/60-36/28 5/20-36/84 25/20-36/28 35/20-36/28