Subtract 1/14 from 21/15
1st number: 1 6/15, 2nd number: 1/14
21/15 - 1/14 is 93/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
21/15 = 21 × 14/15 × 14 = 294/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
1/14 = 1 × 15/14 × 15 = 15/210 - Subtract the two like fractions:
294/210 - 15/210 = 294 - 15/210 = 279/210 - After reducing the fraction, the answer is 93/70
- In mixed form: 123/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/15-1/14 21/15-2/14 21/30-1/14 21/15-1/28 63/15-1/14 21/15-3/14 21/45-1/14 21/15-1/42 21/15-5/14 21/75-1/14 21/15-1/70 21/15-7/14 21/15-1/98