Subtract 3/10 from 27/63
27/63 - 3/10 is 9/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 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 10 × 63 = 630,
3/10 = 3 × 63/10 × 63 = 189/630 - Subtract the two like fractions:
270/630 - 189/630 = 270 - 189/630 = 81/630 - After reducing the fraction, the answer is 9/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/63-3/10 27/63-6/10 27/63-3/20 81/63-3/10 27/63-9/10 27/63-3/30 27/63-15/10 27/63-3/50 27/63-21/10 27/63-3/70