Subtract 20/18 from 4/36
1st number: 4/36, 2nd number: 1 2/18
4/36 - 20/18 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
4/36 = 4 × 1/36 × 1 = 4/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36 - Subtract the two like fractions:
4/36 - 40/36 = 4 - 40/36 = -36/36 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/36-20/18 4/36-40/18 4/72-20/18 4/36-20/36 12/36-20/18 4/36-60/18 4/36-20/54 20/36-20/18 4/36-20/90 28/36-20/18