Subtract 1/56 from 15/45
15/45 - 1/56 is 53/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
15/45 = 15 × 56/45 × 56 = 840/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
1/56 = 1 × 45/56 × 45 = 45/2520 - Subtract the two like fractions:
840/2520 - 45/2520 = 840 - 45/2520 = 795/2520 - After reducing the fraction, the answer is 53/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/45-1/56 15/45-2/56 15/90-1/56 15/45-3/56 75/45-1/56 15/45-5/56 15/45-7/56