Subtract 6/63 from 42/70
42/70 - 6/63 is 53/105.
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,
42/70 = 42 × 9/70 × 9 = 378/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
6/63 = 6 × 10/63 × 10 = 60/630 - Subtract the two like fractions:
378/630 - 60/630 = 378 - 60/630 = 318/630 - After reducing the fraction, the answer is 53/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-6/63 42/70-12/63 42/70-18/63 42/70-30/63 42/70-42/63