Subtract 1/90 from 2/56
2/56 - 1/90 is 31/1260.
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,
2/56 = 2 × 45/56 × 45 = 90/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
1/90 = 1 × 28/90 × 28 = 28/2520 - Subtract the two like fractions:
90/2520 - 28/2520 = 90 - 28/2520 = 62/2520 - After reducing the fraction, the answer is 31/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/56-1/90 2/56-2/90 6/56-1/90 2/56-3/90 10/56-1/90 2/56-5/90 14/56-1/90 2/56-7/90