Subtract 45/6 from 84/40
1st number: 2 4/40, 2nd number: 7 3/6
84/40 - 45/6 is -27/5.
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,
84/40 = 84 × 3/40 × 3 = 252/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
45/6 = 45 × 20/6 × 20 = 900/120 - Subtract the two like fractions:
252/120 - 900/120 = 252 - 900/120 = -648/120 - After reducing the fraction, the answer is -27/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40-90/6 84/80-45/6 84/40-45/12 84/40-45/18 84/40-45/30 84/40-45/42