Subtract 9/35 from 20/12
1st number: 1 8/12, 2nd number: 9/35
20/12 - 9/35 is 148/105.
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,
20/12 = 20 × 35/12 × 35 = 700/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
9/35 = 9 × 12/35 × 12 = 108/420 - Subtract the two like fractions:
700/420 - 108/420 = 700 - 108/420 = 592/420 - After reducing the fraction, the answer is 148/105
- In mixed form: 143/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12-9/35 20/12-18/35 20/24-9/35 20/12-9/70 60/12-9/35 20/12-27/35 20/36-9/35 20/12-45/35 20/60-9/35 20/12-63/35 20/84-9/35