Subtract 1/45 from 15/32
15/32 - 1/45 is 643/1440.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 45 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 32 × 45 = 1440,
15/32 = 15 × 45/32 × 45 = 675/1440 - Likewise, for the 2nd fraction, since 45 × 32 = 1440,
1/45 = 1 × 32/45 × 32 = 32/1440 - Subtract the two like fractions:
675/1440 - 32/1440 = 675 - 32/1440 = 643/1440
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/32-1/45 15/32-2/45 15/64-1/45 15/32-1/90 45/32-1/45 15/32-3/45 15/96-1/45 75/32-1/45 15/32-5/45 15/32-7/45