Subtract 9/72 from 56/45
1st number: 1 11/45, 2nd number: 9/72
56/45 - 9/72 is 403/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
56/45 = 56 × 8/45 × 8 = 448/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Subtract the two like fractions:
448/360 - 45/360 = 448 - 45/360 = 403/360 - In mixed form: 143/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-18/72 56/90-9/72 56/45-27/72 56/45-45/72 56/45-63/72