Subtract 42/45 from 3/14
3/14 - 42/45 is -151/210.
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,
3/14 = 3 × 45/14 × 45 = 135/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
42/45 = 42 × 14/45 × 14 = 588/630 - Subtract the two like fractions:
135/630 - 588/630 = 135 - 588/630 = -453/630 - After reducing the fraction, the answer is -151/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/14-42/45 3/14-84/45 3/28-42/45 3/14-42/90 9/14-42/45 3/42-42/45 15/14-42/45 3/70-42/45 21/14-42/45 3/98-42/45