Subtract 45/80 from 2/36
2/36 - 45/80 is -73/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
2/36 = 2 × 20/36 × 20 = 40/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
45/80 = 45 × 9/80 × 9 = 405/720 - Subtract the two like fractions:
40/720 - 405/720 = 40 - 405/720 = -365/720 - After reducing the fraction, the answer is -73/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/36-45/80 2/36-90/80 2/72-45/80 6/36-45/80 10/36-45/80 14/36-45/80