Subtract 8/18 from 36/20
1st number: 1 16/20, 2nd number: 8/18
36/20 - 8/18 is 61/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
36/20 = 36 × 9/20 × 9 = 324/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
8/18 = 8 × 10/18 × 10 = 80/180 - Subtract the two like fractions:
324/180 - 80/180 = 324 - 80/180 = 244/180 - After reducing the fraction, the answer is 61/45
- In mixed form: 116/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20-8/18 36/20-16/18 36/40-8/18 36/20-8/36 36/20-24/18 36/60-8/18 36/20-8/54 36/20-40/18 36/20-8/90 36/20-56/18