Subtract 4/14 from 9/90
9/90 - 4/14 is -13/70.
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,
9/90 = 9 × 7/90 × 7 = 63/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
4/14 = 4 × 45/14 × 45 = 180/630 - Subtract the two like fractions:
63/630 - 180/630 = 63 - 180/630 = -117/630 - After reducing the fraction, the answer is -13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90-4/14 9/90-8/14 9/90-4/28 27/90-4/14 9/90-12/14 9/90-4/42 45/90-4/14 9/90-20/14 9/90-4/70 63/90-4/14 9/90-28/14 9/90-4/98