Subtract 1/45 from 15/84
15/84 - 1/45 is 197/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
15/84 = 15 × 15/84 × 15 = 225/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
1/45 = 1 × 28/45 × 28 = 28/1260 - Subtract the two like fractions:
225/1260 - 28/1260 = 225 - 28/1260 = 197/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84-1/45 15/84-2/45 15/84-1/90 45/84-1/45 15/84-3/45 75/84-1/45 15/84-5/45 15/84-7/45