Subtract 56/81 from 35/20
1st number: 1 15/20, 2nd number: 56/81
35/20 - 56/81 is 343/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 20 × 81 = 1620,
35/20 = 35 × 81/20 × 81 = 2835/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
56/81 = 56 × 20/81 × 20 = 1120/1620 - Subtract the two like fractions:
2835/1620 - 1120/1620 = 2835 - 1120/1620 = 1715/1620 - After reducing the fraction, the answer is 343/324
- In mixed form: 119/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-56/81 35/40-56/81 35/60-56/81