Subtract 3/56 from 90/45
1st number: 2 0/45, 2nd number: 3/56
90/45 - 3/56 is 109/56.
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,
90/45 = 90 × 56/45 × 56 = 5040/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
3/56 = 3 × 45/56 × 45 = 135/2520 - Subtract the two like fractions:
5040/2520 - 135/2520 = 5040 - 135/2520 = 4905/2520 - After reducing the fraction, the answer is 109/56
- In mixed form: 153/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45-6/56 90/45-9/56 90/45-15/56 90/45-21/56