Subtract 20/35 from 7/12
7/12 - 20/35 is 1/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
7/12 = 7 × 35/12 × 35 = 245/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
20/35 = 20 × 12/35 × 12 = 240/420 - Subtract the two like fractions:
245/420 - 240/420 = 245 - 240/420 = 5/420 - After reducing the fraction, the answer is 1/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-20/35 7/12-40/35 7/24-20/35 7/12-20/70 21/12-20/35 7/12-60/35 7/36-20/35 35/12-20/35 7/60-20/35 49/12-20/35 7/84-20/35