Subtract 30/36 from 9/84
9/84 - 30/36 is -61/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
9/84 = 9 × 3/84 × 3 = 27/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
30/36 = 30 × 7/36 × 7 = 210/252 - Subtract the two like fractions:
27/252 - 210/252 = 27 - 210/252 = -183/252 - After reducing the fraction, the answer is -61/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/84-30/36 9/84-60/36 9/84-30/72 27/84-30/36 9/84-90/36 45/84-30/36 63/84-30/36