Subtract 45/36 from 10/80
1st number: 10/80, 2nd number: 1 9/36
10/80 - 45/36 is -9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 36 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
10/80 = 10 × 9/80 × 9 = 90/720 - Likewise, for the 2nd fraction, since 36 × 20 = 720,
45/36 = 45 × 20/36 × 20 = 900/720 - Subtract the two like fractions:
90/720 - 900/720 = 90 - 900/720 = -810/720 - After reducing the fraction, the answer is -9/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80-45/36 10/80-90/36 10/80-45/72 30/80-45/36 50/80-45/36 70/80-45/36