Subtract 70/45 from 81/6
1st number: 13 3/6, 2nd number: 1 25/45
81/6 - 70/45 is 215/18.
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,
70/45 = 70 × 2/45 × 2 = 140/90 - Subtract the two like fractions:
1215/90 - 140/90 = 1215 - 140/90 = 1075/90 - After reducing the fraction, the answer is 215/18
- In mixed form: 1117/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/12-70/45 81/6-70/90 81/18-70/45 81/30-70/45 81/42-70/45