Subtract 8/35 from 3/90
3/90 - 8/35 is -41/210.
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,
3/90 = 3 × 7/90 × 7 = 21/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
8/35 = 8 × 18/35 × 18 = 144/630 - Subtract the two like fractions:
21/630 - 144/630 = 21 - 144/630 = -123/630 - After reducing the fraction, the answer is -41/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/90-8/35 3/90-16/35 3/90-8/70 9/90-8/35 3/90-24/35 15/90-8/35 3/90-40/35 21/90-8/35 3/90-56/35