Subtract 70/63 from 7/10
1st number: 7/10, 2nd number: 1 7/63
7/10 - 70/63 is -37/90.
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,
7/10 = 7 × 63/10 × 63 = 441/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
70/63 = 70 × 10/63 × 10 = 700/630 - Subtract the two like fractions:
441/630 - 700/630 = 441 - 700/630 = -259/630 - After reducing the fraction, the answer is -37/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10-70/63 7/20-70/63 21/10-70/63 7/30-70/63 35/10-70/63 7/50-70/63 49/10-70/63 7/70-70/63