Subtract 70/63 from 81/6
1st number: 13 3/6, 2nd number: 1 7/63
81/6 - 70/63 is 223/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 6 × 21 = 126,
81/6 = 81 × 21/6 × 21 = 1701/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
70/63 = 70 × 2/63 × 2 = 140/126 - Subtract the two like fractions:
1701/126 - 140/126 = 1701 - 140/126 = 1561/126 - After reducing the fraction, the answer is 223/18
- In mixed form: 127/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/12-70/63 81/18-70/63 81/30-70/63 81/42-70/63