Subtract 63/12 from 90/14
1st number: 6 6/14, 2nd number: 5 3/12
90/14 - 63/12 is 33/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
90/14 = 90 × 6/14 × 6 = 540/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
63/12 = 63 × 7/12 × 7 = 441/84 - Subtract the two like fractions:
540/84 - 441/84 = 540 - 441/84 = 99/84 - After reducing the fraction, the answer is 33/28
- In mixed form: 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28-63/12 90/14-63/24 90/42-63/12 90/14-63/36 90/70-63/12 90/14-63/60 90/98-63/12 90/14-63/84