Subtract 70/27 from 36/81
1st number: 36/81, 2nd number: 2 16/27
36/81 - 70/27 is -58/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 27 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
36/81 = 36 × 1/81 × 1 = 36/81 - Likewise, for the 2nd fraction, since 27 × 3 = 81,
70/27 = 70 × 3/27 × 3 = 210/81 - Subtract the two like fractions:
36/81 - 210/81 = 36 - 210/81 = -174/81 - After reducing the fraction, the answer is -58/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/81-70/27 36/81-70/54 36/81-70/81