Subtract 36/70 from 21/14
1st number: 1 7/14, 2nd number: 36/70
21/14 - 36/70 is 69/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
36/70 = 36 × 1/70 × 1 = 36/70 - Subtract the two like fractions:
105/70 - 36/70 = 105 - 36/70 = 69/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-36/70 21/14-72/70 21/28-36/70 63/14-36/70 21/42-36/70 21/70-36/70 21/98-36/70