Subtract 9/30 from 50/84
50/84 - 9/30 is 31/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
50/84 = 50 × 5/84 × 5 = 250/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
9/30 = 9 × 14/30 × 14 = 126/420 - Subtract the two like fractions:
250/420 - 126/420 = 250 - 126/420 = 124/420 - After reducing the fraction, the answer is 31/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84-18/30 50/84-9/60 50/84-27/30 50/84-9/90 50/84-45/30 50/84-63/30