Subtract 20/72 from 35/3
1st number: 11 2/3, 2nd number: 20/72
35/3 - 20/72 is 205/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
35/3 = 35 × 24/3 × 24 = 840/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Subtract the two like fractions:
840/72 - 20/72 = 840 - 20/72 = 820/72 - After reducing the fraction, the answer is 205/18
- In mixed form: 117/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/3-20/72 35/3-40/72 35/6-20/72 35/3-60/72 35/9-20/72 35/15-20/72 35/21-20/72