Subtract 20/84 from 12/35
12/35 - 20/84 is 11/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
12/35 = 12 × 12/35 × 12 = 144/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Subtract the two like fractions:
144/420 - 100/420 = 144 - 100/420 = 44/420 - After reducing the fraction, the answer is 11/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35-20/84 12/35-40/84 12/70-20/84 36/35-20/84 12/35-60/84 60/35-20/84 84/35-20/84