Subtract 4/30 from 27/63
27/63 - 4/30 is 31/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
27/63 = 27 × 10/63 × 10 = 270/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
4/30 = 4 × 21/30 × 21 = 84/630 - Subtract the two like fractions:
270/630 - 84/630 = 270 - 84/630 = 186/630 - After reducing the fraction, the answer is 31/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/63-4/30 27/63-8/30 27/63-4/60 81/63-4/30 27/63-12/30 27/63-4/90 27/63-20/30 27/63-28/30