Subtract 15/45 from 15/5
1st number: 3 0/5, 2nd number: 15/45
15/5 - 15/45 is 8/3.
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,
15/5 = 15 × 9/5 × 9 = 135/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
15/45 = 15 × 1/45 × 1 = 15/45 - Subtract the two like fractions:
135/45 - 15/45 = 135 - 15/45 = 120/45 - After reducing the fraction, the answer is 8/3
- In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/5-15/45 15/5-30/45 15/10-15/45 15/5-15/90 45/5-15/45 75/5-15/45 15/5-75/45 15/25-15/45 15/35-15/45