Subtract 50/81 from 16/18
16/18 - 50/81 is 22/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
16/18 = 16 × 9/18 × 9 = 144/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
50/81 = 50 × 2/81 × 2 = 100/162 - Subtract the two like fractions:
144/162 - 100/162 = 144 - 100/162 = 44/162 - After reducing the fraction, the answer is 22/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/18-50/81 16/36-50/81 48/18-50/81 16/54-50/81 80/18-50/81 16/90-50/81