Subtract 10/4 from 21/63
1st number: 21/63, 2nd number: 2 2/4
21/63 - 10/4 is -13/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
21/63 = 21 × 4/63 × 4 = 84/252 - Likewise, for the 2nd fraction, since 4 × 63 = 252,
10/4 = 10 × 63/4 × 63 = 630/252 - Subtract the two like fractions:
84/252 - 630/252 = 84 - 630/252 = -546/252 - After reducing the fraction, the answer is -13/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/63-10/4 21/63-20/4 21/63-10/8 21/63-30/4 21/63-10/12 21/63-50/4 21/63-10/20 21/63-70/4 21/63-10/28