Subtract 35/27 from 9/42
1st number: 9/42, 2nd number: 1 8/27
9/42 - 35/27 is -409/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
9/42 = 9 × 9/42 × 9 = 81/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
35/27 = 35 × 14/27 × 14 = 490/378 - Subtract the two like fractions:
81/378 - 490/378 = 81 - 490/378 = -409/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42-35/27 9/42-70/27 9/84-35/27 9/42-35/54 27/42-35/27 9/42-35/81 45/42-35/27 63/42-35/27