Subtract 6/56 from 3/45
3/45 - 6/56 is -17/420.
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,
3/45 = 3 × 56/45 × 56 = 168/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
6/56 = 6 × 45/56 × 45 = 270/2520 - Subtract the two like fractions:
168/2520 - 270/2520 = 168 - 270/2520 = -102/2520 - After reducing the fraction, the answer is -17/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45-6/56 3/45-12/56 3/90-6/56 9/45-6/56 3/45-18/56 15/45-6/56 3/45-30/56 21/45-6/56 3/45-42/56