Subtract 45/21 from 6/3
1st number: 2 0/3, 2nd number: 2 3/21
6/3 - 45/21 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
6/3 = 6 × 7/3 × 7 = 42/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
45/21 = 45 × 1/21 × 1 = 45/21 - Subtract the two like fractions:
42/21 - 45/21 = 42 - 45/21 = -3/21 - After reducing the fraction, the answer is -1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/3-45/21 6/3-90/21 6/3-45/42 18/3-45/21 6/9-45/21 6/3-45/63 30/3-45/21 6/15-45/21 42/3-45/21 6/21-45/21