Subtract 27/35 from 4/90
4/90 - 27/35 is -229/315.
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,
4/90 = 4 × 7/90 × 7 = 28/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
27/35 = 27 × 18/35 × 18 = 486/630 - Subtract the two like fractions:
28/630 - 486/630 = 28 - 486/630 = -458/630 - After reducing the fraction, the answer is -229/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90-27/35 4/90-54/35 4/90-27/70 12/90-27/35 4/90-81/35 20/90-27/35 28/90-27/35