Subtract 54/45 from 20/2
1st number: 10 0/2, 2nd number: 1 9/45
20/2 - 54/45 is 44/5.
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,
20/2 = 20 × 45/2 × 45 = 900/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
54/45 = 54 × 2/45 × 2 = 108/90 - Subtract the two like fractions:
900/90 - 108/90 = 900 - 108/90 = 792/90 - After reducing the fraction, the answer is 44/5
- In mixed form: 84/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2-54/45 20/4-54/45 20/2-54/90 60/2-54/45 20/6-54/45 20/10-54/45 20/14-54/45