Subtract 12/35 from 27/84
27/84 - 12/35 is -3/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
12/35 = 12 × 12/35 × 12 = 144/420 - Subtract the two like fractions:
135/420 - 144/420 = 135 - 144/420 = -9/420 - After reducing the fraction, the answer is -3/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84-12/35 27/84-24/35 27/84-12/70 81/84-12/35 27/84-36/35 27/84-60/35 27/84-84/35