Subtract 28/4 from 20/36
1st number: 20/36, 2nd number: 7 0/4
20/36 - 28/4 is -58/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
20/36 = 20 × 1/36 × 1 = 20/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
28/4 = 28 × 9/4 × 9 = 252/36 - Subtract the two like fractions:
20/36 - 252/36 = 20 - 252/36 = -232/36 - After reducing the fraction, the answer is -58/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36-28/4 20/36-56/4 20/72-28/4 20/36-28/8 60/36-28/4 20/36-84/4 20/36-28/12 20/36-28/20