Subtract 3/45 from 81/6
1st number: 13 3/6, 2nd number: 3/45
81/6 - 3/45 is 403/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
81/6 = 81 × 15/6 × 15 = 1215/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
3/45 = 3 × 2/45 × 2 = 6/90 - Subtract the two like fractions:
1215/90 - 6/90 = 1215 - 6/90 = 1209/90 - After reducing the fraction, the answer is 403/30
- In mixed form: 1313/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6-6/45 81/12-3/45 81/6-3/90 81/6-9/45 81/18-3/45 81/6-15/45 81/30-3/45 81/6-21/45 81/42-3/45