Subtract 70/63 from 10/70
1st number: 10/70, 2nd number: 1 7/63
10/70 - 70/63 is -61/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
10/70 = 10 × 9/70 × 9 = 90/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
70/63 = 70 × 10/63 × 10 = 700/630 - Subtract the two like fractions:
90/630 - 700/630 = 90 - 700/630 = -610/630 - After reducing the fraction, the answer is -61/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/70-70/63 30/70-70/63 50/70-70/63