Subtract 63/14 from 28/42
1st number: 28/42, 2nd number: 4 7/14
28/42 - 63/14 is -23/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
28/42 = 28 × 1/42 × 1 = 28/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
63/14 = 63 × 3/14 × 3 = 189/42 - Subtract the two like fractions:
28/42 - 189/42 = 28 - 189/42 = -161/42 - After reducing the fraction, the answer is -23/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-63/14 28/84-63/14 28/42-63/28 84/42-63/14 28/42-63/42 28/42-63/70 28/42-63/98