Subtract 84/6 from 42/40
1st number: 1 2/40, 2nd number: 14 0/6
42/40 - 84/6 is -259/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
84/6 = 84 × 20/6 × 20 = 1680/120 - Subtract the two like fractions:
126/120 - 1680/120 = 126 - 1680/120 = -1554/120 - After reducing the fraction, the answer is -259/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40-84/6 42/80-84/6 42/40-84/12 42/40-84/18 42/40-84/30 42/40-84/42