Subtract 63/3 from 15/42
1st number: 15/42, 2nd number: 21 0/3
15/42 - 63/3 is -289/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
63/3 = 63 × 14/3 × 14 = 882/42 - Subtract the two like fractions:
15/42 - 882/42 = 15 - 882/42 = -867/42 - After reducing the fraction, the answer is -289/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42-63/3 15/84-63/3 15/42-63/6 45/42-63/3 15/42-63/9 75/42-63/3 15/42-63/15 15/42-63/21