Subtract 9/80 from 84/18
1st number: 4 12/18, 2nd number: 9/80
84/18 - 9/80 is 1093/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
84/18 = 84 × 40/18 × 40 = 3360/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
9/80 = 9 × 9/80 × 9 = 81/720 - Subtract the two like fractions:
3360/720 - 81/720 = 3360 - 81/720 = 3279/720 - After reducing the fraction, the answer is 1093/240
- In mixed form: 4133/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-18/80 84/36-9/80 84/18-27/80 84/54-9/80 84/18-45/80 84/90-9/80 84/18-63/80