Subtract 45/6 from 48/21
1st number: 2 6/21, 2nd number: 7 3/6
48/21 - 45/6 is -73/14.
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,
48/21 = 48 × 2/21 × 2 = 96/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
45/6 = 45 × 7/6 × 7 = 315/42 - Subtract the two like fractions:
96/42 - 315/42 = 96 - 315/42 = -219/42 - After reducing the fraction, the answer is -73/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/21-45/6 48/21-90/6 48/42-45/6 48/21-45/12 48/63-45/6 48/21-45/18 48/21-45/30 48/21-45/42