Subtract 45/56 from 35/90
35/90 - 45/56 is -209/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
35/90 = 35 × 28/90 × 28 = 980/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
45/56 = 45 × 45/56 × 45 = 2025/2520 - Subtract the two like fractions:
980/2520 - 2025/2520 = 980 - 2025/2520 = -1045/2520 - After reducing the fraction, the answer is -209/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90-45/56 35/90-90/56