Subtract 7/72 from 45/9
1st number: 5 0/9, 2nd number: 7/72
45/9 - 7/72 is 353/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
45/9 = 45 × 8/9 × 8 = 360/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
7/72 = 7 × 1/72 × 1 = 7/72 - Subtract the two like fractions:
360/72 - 7/72 = 360 - 7/72 = 353/72 - In mixed form: 465/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9-7/72 45/9-14/72 45/18-7/72 45/9-21/72 45/27-7/72 45/9-35/72 45/9-49/72 45/63-7/72