Subtract 4/36 from 1/45
1/45 - 4/36 is -4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
1/45 = 1 × 4/45 × 4 = 4/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
4/36 = 4 × 5/36 × 5 = 20/180 - Subtract the two like fractions:
4/180 - 20/180 = 4 - 20/180 = -16/180 - After reducing the fraction, the answer is -4/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45-4/36 1/45-8/36 1/90-4/36 1/45-4/72 3/45-4/36 1/45-12/36 5/45-4/36 1/45-20/36 7/45-4/36 1/45-28/36