Subtract 4/45 from 15/72
15/72 - 4/45 is 43/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
4/45 = 4 × 8/45 × 8 = 32/360 - Subtract the two like fractions:
75/360 - 32/360 = 75 - 32/360 = 43/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72-4/45 15/72-8/45 15/72-4/90 45/72-4/45 15/72-12/45 75/72-4/45 15/72-20/45 15/72-28/45