Subtract 3/4 from 5/45
5/45 - 3/4 is -23/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
5/45 = 5 × 4/45 × 4 = 20/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
3/4 = 3 × 45/4 × 45 = 135/180 - Subtract the two like fractions:
20/180 - 135/180 = 20 - 135/180 = -115/180 - After reducing the fraction, the answer is -23/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/45-3/4 5/45-6/4 5/90-3/4 5/45-3/8 15/45-3/4 5/45-9/4 5/45-3/12 25/45-3/4 5/45-15/4 5/45-3/20 35/45-3/4 5/45-21/4 5/45-3/28