Subtract 45/90 from 6/36
6/36 - 45/90 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
6/36 = 6 × 5/36 × 5 = 30/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Subtract the two like fractions:
30/180 - 90/180 = 30 - 90/180 = -60/180 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/36-45/90 6/72-45/90 18/36-45/90 30/36-45/90 42/36-45/90