Subtract 3/56 from 4/45
4/45 - 3/56 is 89/2520.
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,
4/45 = 4 × 56/45 × 56 = 224/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
3/56 = 3 × 45/56 × 45 = 135/2520 - Subtract the two like fractions:
224/2520 - 135/2520 = 224 - 135/2520 = 89/2520
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-3/56 4/45-6/56 4/90-3/56 12/45-3/56 4/45-9/56 20/45-3/56 4/45-15/56 28/45-3/56 4/45-21/56