Subtract 3/8 from 45/63
45/63 - 3/8 is 19/56.
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,
45/63 = 45 × 8/63 × 8 = 360/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
3/8 = 3 × 63/8 × 63 = 189/504 - Subtract the two like fractions:
360/504 - 189/504 = 360 - 189/504 = 171/504 - After reducing the fraction, the answer is 19/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63-3/8 45/63-6/8 45/63-3/16 45/63-9/8 45/63-3/24 45/63-15/8 45/63-3/40 45/63-21/8 45/63-3/56