Subtract 8/90 from 2/35
2/35 - 8/90 is -2/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
2/35 = 2 × 18/35 × 18 = 36/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
8/90 = 8 × 7/90 × 7 = 56/630 - Subtract the two like fractions:
36/630 - 56/630 = 36 - 56/630 = -20/630 - After reducing the fraction, the answer is -2/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/35-8/90 2/35-16/90 2/70-8/90 6/35-8/90 2/35-24/90 10/35-8/90 2/35-40/90 14/35-8/90 2/35-56/90