Subtract 20/45 from 63/2
1st number: 31 1/2, 2nd number: 20/45
63/2 - 20/45 is 559/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
63/2 = 63 × 45/2 × 45 = 2835/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Subtract the two like fractions:
2835/90 - 40/90 = 2835 - 40/90 = 2795/90 - After reducing the fraction, the answer is 559/18
- In mixed form: 311/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/2-40/45 63/4-20/45 63/2-20/90 63/2-60/45 63/6-20/45 63/10-20/45 63/14-20/45