Subtract 20/70 from 24/12
1st number: 2 0/12, 2nd number: 20/70
24/12 - 20/70 is 12/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
24/12 = 24 × 35/12 × 35 = 840/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
20/70 = 20 × 6/70 × 6 = 120/420 - Subtract the two like fractions:
840/420 - 120/420 = 840 - 120/420 = 720/420 - After reducing the fraction, the answer is 12/7
- In mixed form: 15/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/12-20/70 24/12-40/70 72/12-20/70 24/12-60/70 24/36-20/70 24/60-20/70 24/84-20/70