Subtract 4/90 from 42/14
1st number: 3 0/14, 2nd number: 4/90
42/14 - 4/90 is 133/45.
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,
42/14 = 42 × 45/14 × 45 = 1890/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
4/90 = 4 × 7/90 × 7 = 28/630 - Subtract the two like fractions:
1890/630 - 28/630 = 1890 - 28/630 = 1862/630 - After reducing the fraction, the answer is 133/45
- In mixed form: 243/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14-4/90 42/14-8/90 42/28-4/90 42/14-12/90 42/14-20/90 42/70-4/90 42/14-28/90 42/98-4/90