Subtract 15/45 from 42/14
1st number: 3 0/14, 2nd number: 15/45
42/14 - 15/45 is 8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
42/14 = 42 × 45/14 × 45 = 1890/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
15/45 = 15 × 14/45 × 14 = 210/630 - Subtract the two like fractions:
1890/630 - 210/630 = 1890 - 210/630 = 1680/630 - 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: 84/14-15/45 42/14-30/45 42/28-15/45 42/14-15/90 42/14-75/45 42/70-15/45 42/98-15/45