Subtract 9/70 from 50/63
50/63 - 9/70 is 419/630.
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,
50/63 = 50 × 10/63 × 10 = 500/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
9/70 = 9 × 9/70 × 9 = 81/630 - Subtract the two like fractions:
500/630 - 81/630 = 500 - 81/630 = 419/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/63-18/70 50/63-27/70 50/63-45/70 50/63-63/70