Subtract 14/9 from 45/72
1st number: 45/72, 2nd number: 1 5/9
45/72 - 14/9 is -67/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
45/72 = 45 × 1/72 × 1 = 45/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
14/9 = 14 × 8/9 × 8 = 112/72 - Subtract the two like fractions:
45/72 - 112/72 = 45 - 112/72 = -67/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72-14/9 45/72-28/9 45/72-14/18 45/72-42/9 45/72-14/27 45/72-70/9 45/72-14/45 45/72-98/9 45/72-14/63