Subtract 70/63 from 3/10
1st number: 3/10, 2nd number: 1 7/63
3/10 - 70/63 is -73/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
3/10 = 3 × 63/10 × 63 = 189/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
70/63 = 70 × 10/63 × 10 = 700/630 - Subtract the two like fractions:
189/630 - 700/630 = 189 - 700/630 = -511/630 - After reducing the fraction, the answer is -73/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-70/63 3/20-70/63 9/10-70/63 3/30-70/63 15/10-70/63 3/50-70/63 21/10-70/63 3/70-70/63