Subtract 16/4 from 6/81
1st number: 6/81, 2nd number: 4 0/4
6/81 - 16/4 is -106/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
6/81 = 6 × 4/81 × 4 = 24/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
16/4 = 16 × 81/4 × 81 = 1296/324 - Subtract the two like fractions:
24/324 - 1296/324 = 24 - 1296/324 = -1272/324 - After reducing the fraction, the answer is -106/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/81-16/4 6/81-32/4 6/81-16/8 18/81-16/4 6/81-48/4 6/81-16/12 30/81-16/4 6/81-80/4 6/81-16/20 42/81-16/4 6/81-16/28