Subtract 14/7 from 6/90
1st number: 6/90, 2nd number: 2 0/7
6/90 - 14/7 is -29/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
6/90 = 6 × 7/90 × 7 = 42/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
14/7 = 14 × 90/7 × 90 = 1260/630 - Subtract the two like fractions:
42/630 - 1260/630 = 42 - 1260/630 = -1218/630 - After reducing the fraction, the answer is -29/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/90-14/7 6/90-28/7 18/90-14/7 6/90-42/7 6/90-14/21 30/90-14/7 6/90-70/7 6/90-14/35 42/90-14/7 6/90-98/7 6/90-14/49