Subtract 7/6 from 4/21
1st number: 4/21, 2nd number: 1 1/6
421 - 76 is -4142.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
421 = 4 × 221 × 2 = 842 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
76 = 7 × 76 × 7 = 4942 - Subtract the two like fractions:
842 - 4942 = 8 - 4942 = -4142
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21-7/6 4/21-14/6 4/42-7/6 4/21-7/12 12/21-7/6 4/21-21/6 4/63-7/6 4/21-7/18 20/21-7/6 4/21-35/6 4/21-7/30 28/21-7/6 4/21-49/6 4/21-7/42