Subtract 1/5 from 25/18
1st number: 1 7/18, 2nd number: 1/5
25/18 - 1/5 is 107/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
25/18 = 25 × 5/18 × 5 = 125/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
1/5 = 1 × 18/5 × 18 = 18/90 - Subtract the two like fractions:
125/90 - 18/90 = 125 - 18/90 = 107/90 - In mixed form: 117/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/18-1/5 25/18-2/5 25/36-1/5 25/18-1/10 75/18-1/5 25/18-3/5 25/54-1/5 25/18-1/15 25/90-1/5 25/18-1/25 25/18-7/5 25/18-1/35