Subtract 50/14 from 21/70
1st number: 21/70, 2nd number: 3 8/14
21/70 - 50/14 is -229/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 14 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70 - Likewise, for the 2nd fraction, since 14 × 5 = 70,
50/14 = 50 × 5/14 × 5 = 250/70 - Subtract the two like fractions:
21/70 - 250/70 = 21 - 250/70 = -229/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/70-50/14 21/70-50/28 63/70-50/14 21/70-50/42 21/70-50/70 21/70-50/98