Subtract 36/84 from 9/30
9/30 - 36/84 is -9/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
9/30 = 9 × 14/30 × 14 = 126/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
36/84 = 36 × 5/84 × 5 = 180/420 - Subtract the two like fractions:
126/420 - 180/420 = 126 - 180/420 = -54/420 - After reducing the fraction, the answer is -9/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-36/84 9/30-72/84 9/60-36/84 27/30-36/84 9/90-36/84 45/30-36/84 63/30-36/84