Subtract 42/90 from 6/14
6/14 - 42/90 is -4/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
6/14 = 6 × 45/14 × 45 = 270/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Subtract the two like fractions:
270/630 - 294/630 = 270 - 294/630 = -24/630 - After reducing the fraction, the answer is -4/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/14-42/90 6/14-84/90 6/28-42/90 18/14-42/90 6/42-42/90 30/14-42/90 6/70-42/90 42/14-42/90 6/98-42/90