Subtract 9/70 from 20/2
1st number: 10 0/2, 2nd number: 9/70
20/2 - 9/70 is 691/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
20/2 = 20 × 35/2 × 35 = 700/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
9/70 = 9 × 1/70 × 1 = 9/70 - Subtract the two like fractions:
700/70 - 9/70 = 700 - 9/70 = 691/70 - In mixed form: 961/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2-9/70 20/2-18/70 20/4-9/70 60/2-9/70 20/2-27/70 20/6-9/70 20/2-45/70 20/10-9/70 20/2-63/70 20/14-9/70