Subtract 90/63 from 70/10
1st number: 7 0/10, 2nd number: 1 27/63
70/10 - 90/63 is 39/7.
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,
70/10 = 70 × 63/10 × 63 = 4410/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
90/63 = 90 × 10/63 × 10 = 900/630 - Subtract the two like fractions:
4410/630 - 900/630 = 4410 - 900/630 = 3510/630 - After reducing the fraction, the answer is 39/7
- In mixed form: 54/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-90/63 70/30-90/63 70/50-90/63