Subtract 12/16 from 9/84
9/84 - 12/16 is -9/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
9/84 = 9 × 4/84 × 4 = 36/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
12/16 = 12 × 21/16 × 21 = 252/336 - Subtract the two like fractions:
36/336 - 252/336 = 36 - 252/336 = -216/336 - After reducing the fraction, the answer is -9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/84-12/16 9/84-24/16 9/84-12/32 27/84-12/16 9/84-36/16 9/84-12/48 45/84-12/16 9/84-60/16 9/84-12/80 63/84-12/16 9/84-84/16