Subtract 42/7 from 3/63
1st number: 3/63, 2nd number: 6 0/7
3/63 - 42/7 is -125/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
3/63 = 3 × 1/63 × 1 = 3/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
42/7 = 42 × 9/7 × 9 = 378/63 - Subtract the two like fractions:
3/63 - 378/63 = 3 - 378/63 = -375/63 - After reducing the fraction, the answer is -125/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/63-42/7 3/63-84/7 3/63-42/14 9/63-42/7 3/63-42/21 15/63-42/7 3/63-42/35 21/63-42/7 3/63-42/49