Subtract 40/14 from 30/84
1st number: 30/84, 2nd number: 2 12/14
30/84 - 40/14 is -5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 14 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 14 × 6 = 84,
40/14 = 40 × 6/14 × 6 = 240/84 - Subtract the two like fractions:
30/84 - 240/84 = 30 - 240/84 = -210/84 - After reducing the fraction, the answer is -5/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84-40/14 30/84-80/14 30/84-40/28 90/84-40/14 30/84-40/42 30/84-40/70 30/84-40/98