Subtract 18/24 from 6/84
6/84 - 18/24 is -19/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168 - For the 1st fraction, since 84 × 2 = 168,
6/84 = 6 × 2/84 × 2 = 12/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Subtract the two fractions:
12/168 - 126/168 = 12 - 126/168 = -114/168 - After reducing the fraction, the answer is -19/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/84-18/24 6/84-36/24 6/84-18/48 18/84-18/24 6/84-54/24 6/84-18/72 30/84-18/24 6/84-90/24 42/84-18/24