Subtract 4/70 from 9/63
9/63 - 4/70 is 3/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
9/63 = 9 × 10/63 × 10 = 90/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630 - Subtract the two like fractions:
90/630 - 36/630 = 90 - 36/630 = 54/630 - After reducing the fraction, the answer is 3/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/63-4/70 9/63-8/70 27/63-4/70 9/63-12/70 45/63-4/70 9/63-20/70 9/63-28/70