Subtract 49/40 from 84/18
1st number: 4 12/18, 2nd number: 1 9/40
84/18 - 49/40 is 413/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
84/18 = 84 × 20/18 × 20 = 1680/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
49/40 = 49 × 9/40 × 9 = 441/360 - Subtract the two like fractions:
1680/360 - 441/360 = 1680 - 441/360 = 1239/360 - After reducing the fraction, the answer is 413/120
- In mixed form: 353/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-98/40 84/36-49/40 84/18-49/80 84/54-49/40 84/90-49/40