Subtract 3/90 from 27/35
27/35 - 3/90 is 31/42.
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,
27/35 = 27 × 18/35 × 18 = 486/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
3/90 = 3 × 7/90 × 7 = 21/630 - Subtract the two like fractions:
486/630 - 21/630 = 486 - 21/630 = 465/630 - After reducing the fraction, the answer is 31/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/35-3/90 27/35-6/90 27/70-3/90 81/35-3/90 27/35-9/90 27/35-15/90 27/35-21/90