Subtract 75/45 from 4/5
1st number: 4/5, 2nd number: 1 30/45
4/5 - 75/45 is -13/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
4/5 = 4 × 9/5 × 9 = 36/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
75/45 = 75 × 1/45 × 1 = 75/45 - Subtract the two like fractions:
36/45 - 75/45 = 36 - 75/45 = -39/45 - After reducing the fraction, the answer is -13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-75/45 4/10-75/45 4/5-75/90 12/5-75/45 4/15-75/45 20/5-75/45 4/25-75/45 28/5-75/45 4/35-75/45