Subtract 6/45 from 42/5
1st number: 8 2/5, 2nd number: 6/45
42/5 - 6/45 is 124/15.
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,
42/5 = 42 × 9/5 × 9 = 378/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
6/45 = 6 × 1/45 × 1 = 6/45 - Subtract the two like fractions:
378/45 - 6/45 = 378 - 6/45 = 372/45 - After reducing the fraction, the answer is 124/15
- In mixed form: 84/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-6/45 42/5-12/45 42/10-6/45 42/5-6/90 42/5-18/45 42/15-6/45 42/5-30/45 42/25-6/45 42/5-42/45 42/35-6/45