Subtract 30/84 from 90/30
1st number: 3 0/30, 2nd number: 30/84
90/30 - 30/84 is 37/14.
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,
90/30 = 90 × 14/30 × 14 = 1260/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Subtract the two like fractions:
1260/420 - 150/420 = 1260 - 150/420 = 1110/420 - After reducing the fraction, the answer is 37/14
- In mixed form: 29/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-60/84 90/60-30/84 90/30-90/84