Subtract 60/30 from 75/84
1st number: 75/84, 2nd number: 2 0/30
75/84 - 60/30 is -31/28.
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,
75/84 = 75 × 5/84 × 5 = 375/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
60/30 = 60 × 14/30 × 14 = 840/420 - Subtract the two like fractions:
375/420 - 840/420 = 375 - 840/420 = -465/420 - After reducing the fraction, the answer is -31/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/84-60/90