Subtract 6/90 from 4/56
4/56 - 6/90 is 1/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
4/56 = 4 × 45/56 × 45 = 180/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
6/90 = 6 × 28/90 × 28 = 168/2520 - Subtract the two like fractions:
180/2520 - 168/2520 = 180 - 168/2520 = 12/2520 - After reducing the fraction, the answer is 1/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/56-6/90 4/56-12/90 12/56-6/90 4/56-18/90 20/56-6/90 4/56-30/90 28/56-6/90 4/56-42/90