Subtract 5/35 from 9/90
9/90 - 5/35 is -3/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 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 35 × 18 = 630,
5/35 = 5 × 18/35 × 18 = 90/630 - Subtract the two like fractions:
63/630 - 90/630 = 63 - 90/630 = -27/630 - After reducing the fraction, the answer is -3/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90-5/35 9/90-10/35 9/90-5/70 27/90-5/35 9/90-15/35 45/90-5/35 9/90-25/35 63/90-5/35