Subtract 1/8 from 42/63
42/63 - 1/8 is 13/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
42/63 = 42 × 8/63 × 8 = 336/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
1/8 = 1 × 63/8 × 63 = 63/504 - Subtract the two like fractions:
336/504 - 63/504 = 336 - 63/504 = 273/504 - After reducing the fraction, the answer is 13/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63-1/8 42/63-2/8 42/63-1/16 42/63-3/8 42/63-1/24 42/63-5/8 42/63-1/40 42/63-7/8 42/63-1/56