Subtract 1/7 from 30/84
30/84 - 1/7 is 3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
1/7 = 1 × 12/7 × 12 = 12/84 - Subtract the two like fractions:
30/84 - 12/84 = 30 - 12/84 = 18/84 - After reducing the fraction, the answer is 3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84-1/7 30/84-2/7 30/84-1/14 90/84-1/7 30/84-3/7 30/84-1/21 30/84-5/7 30/84-1/35 30/84-1/49