Subtract 1/5 from 5/45
5/45 - 1/5 is -4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
5/45 = 5 × 1/45 × 1 = 5/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
1/5 = 1 × 9/5 × 9 = 9/45 - Subtract the two like fractions:
5/45 - 9/45 = 5 - 9/45 = -4/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/45-1/5 5/45-2/5 5/90-1/5 5/45-1/10 15/45-1/5 5/45-3/5 5/45-1/15 25/45-1/5 5/45-1/25 35/45-1/5 5/45-7/5 5/45-1/35