Subtract 10/90 from 42/14
1st number: 3 0/14, 2nd number: 10/90
42/14 - 10/90 is 26/9.
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,
10/90 = 10 × 7/90 × 7 = 70/630 - Subtract the two like fractions:
1890/630 - 70/630 = 1890 - 70/630 = 1820/630 - After reducing the fraction, the answer is 26/9
- In mixed form: 28/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14-10/90 42/14-20/90 42/28-10/90 42/14-30/90 42/14-50/90 42/70-10/90 42/14-70/90 42/98-10/90