Subtract 56/81 from 36/30
1st number: 1 6/30, 2nd number: 56/81
36/30 - 56/81 is 206/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
36/30 = 36 × 27/30 × 27 = 972/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
56/81 = 56 × 10/81 × 10 = 560/810 - Subtract the two like fractions:
972/810 - 560/810 = 972 - 560/810 = 412/810 - After reducing the fraction, the answer is 206/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30-56/81 36/60-56/81 36/90-56/81