Subtract 20/18 from 16/5
1st number: 3 1/5, 2nd number: 1 2/18
16/5 - 20/18 is 94/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
16/5 = 16 × 18/5 × 18 = 288/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
288/90 - 100/90 = 288 - 100/90 = 188/90 - After reducing the fraction, the answer is 94/45
- In mixed form: 24/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/5-20/18 16/5-40/18 16/10-20/18 16/5-20/36 48/5-20/18 16/5-60/18 16/15-20/18 16/5-20/54 80/5-20/18 16/25-20/18 16/5-20/90 16/35-20/18