Subtract 40/14 from 80/72
1st number: 1 8/72, 2nd number: 2 12/14
80/72 - 40/14 is -110/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
80/72 = 80 × 7/72 × 7 = 560/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
40/14 = 40 × 36/14 × 36 = 1440/504 - Subtract the two like fractions:
560/504 - 1440/504 = 560 - 1440/504 = -880/504 - After reducing the fraction, the answer is -110/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/72-80/14 80/72-40/28 80/72-40/42 80/72-40/70 80/72-40/98