Subtract 45/12 from 16/84
1st number: 16/84, 2nd number: 3 9/12
16/84 - 45/12 is -299/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
16/84 = 16 × 1/84 × 1 = 16/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
45/12 = 45 × 7/12 × 7 = 315/84 - Subtract the two like fractions:
16/84 - 315/84 = 16 - 315/84 = -299/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/84-45/12 16/84-90/12 16/84-45/24 48/84-45/12 16/84-45/36 80/84-45/12 16/84-45/60 16/84-45/84