Subtract 70/63 from 1/3
1st number: 1/3, 2nd number: 1 7/63
1/3 - 70/63 is -7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 3 × 21 = 63,
1/3 = 1 × 21/3 × 21 = 21/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
70/63 = 70 × 1/63 × 1 = 70/63 - Subtract the two like fractions:
21/63 - 70/63 = 21 - 70/63 = -49/63 - After reducing the fraction, the answer is -7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3-70/63 1/6-70/63 1/9-70/63 5/3-70/63 1/15-70/63 7/3-70/63 1/21-70/63