Subtract 16/81 from 45/3
1st number: 15 0/3, 2nd number: 16/81
45/3 - 16/81 is 1199/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
45/3 = 45 × 27/3 × 27 = 1215/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
16/81 = 16 × 1/81 × 1 = 16/81 - Subtract the two like fractions:
1215/81 - 16/81 = 1215 - 16/81 = 1199/81 - In mixed form: 1465/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3-16/81 45/3-32/81 45/6-16/81 45/3-48/81 45/9-16/81 45/3-80/81 45/15-16/81 45/21-16/81