Subtract 6/14 from 42/90
42/90 - 6/14 is 4/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
6/14 = 6 × 45/14 × 45 = 270/630 - Subtract the two like fractions:
294/630 - 270/630 = 294 - 270/630 = 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: 84/90-6/14 42/90-12/14 42/90-6/28 42/90-18/14 42/90-6/42 42/90-30/14 42/90-6/70 42/90-42/14 42/90-6/98