Subtract 10/90 from 20/16
1st number: 1 4/16, 2nd number: 10/90
20/16 - 10/90 is 41/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
20/16 = 20 × 45/16 × 45 = 900/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
10/90 = 10 × 8/90 × 8 = 80/720 - Subtract the two like fractions:
900/720 - 80/720 = 900 - 80/720 = 820/720 - After reducing the fraction, the answer is 41/36
- In mixed form: 15/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/16-10/90 20/16-20/90 20/32-10/90 60/16-10/90 20/16-30/90 20/48-10/90 20/16-50/90 20/80-10/90 20/16-70/90