Subtract 21/63 from 40/6
1st number: 6 4/6, 2nd number: 21/63
40/6 - 21/63 is 19/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 6 × 21 = 126,
40/6 = 40 × 21/6 × 21 = 840/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
21/63 = 21 × 2/63 × 2 = 42/126 - Subtract the two like fractions:
840/126 - 42/126 = 840 - 42/126 = 798/126 - After reducing the fraction, the answer is 19/3
- In mixed form: 61/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-21/63 40/6-42/63 40/12-21/63 40/18-21/63 40/30-21/63 40/42-21/63