Subtract 27/7 from 12/63
1st number: 12/63, 2nd number: 3 6/7
12/63 - 27/7 is -11/3.
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,
12/63 = 12 × 1/63 × 1 = 12/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
27/7 = 27 × 9/7 × 9 = 243/63 - Subtract the two like fractions:
12/63 - 243/63 = 12 - 243/63 = -231/63 - After reducing the fraction, the answer is -11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/63-27/7 12/63-54/7 12/63-27/14 36/63-27/7 12/63-81/7 12/63-27/21 60/63-27/7 12/63-27/35 84/63-27/7 12/63-27/49