Subtract 96/36 from 21/80
1st number: 21/80, 2nd number: 2 24/36
21/80 - 96/36 is -577/240.
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,
21/80 = 21 × 9/80 × 9 = 189/720 - Likewise, for the 2nd fraction, since 36 × 20 = 720,
96/36 = 96 × 20/36 × 20 = 1920/720 - Subtract the two like fractions:
189/720 - 1920/720 = 189 - 1920/720 = -1731/720 - After reducing the fraction, the answer is -577/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/80-96/36 21/80-96/72 63/80-96/36