Subtract 35/81 from 9/45
9/45 - 35/81 is -94/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
9/45 = 9 × 9/45 × 9 = 81/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
35/81 = 35 × 5/81 × 5 = 175/405 - Subtract the two like fractions:
81/405 - 175/405 = 81 - 175/405 = -94/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45-35/81 9/45-70/81 9/90-35/81 27/45-35/81 63/45-35/81