Subtract 48/84 from 45/12
1st number: 3 9/12, 2nd number: 48/84
45/12 - 48/84 is 89/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
45/12 = 45 × 7/12 × 7 = 315/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
48/84 = 48 × 1/84 × 1 = 48/84 - Subtract the two like fractions:
315/84 - 48/84 = 315 - 48/84 = 267/84 - After reducing the fraction, the answer is 89/28
- In mixed form: 35/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-48/84 45/12-96/84 45/24-48/84 45/36-48/84 45/60-48/84 45/84-48/84