Subtract 4/80 from 84/18
1st number: 4 12/18, 2nd number: 4/80
84/18 - 4/80 is 277/60.
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,
4/80 = 4 × 9/80 × 9 = 36/720 - Subtract the two like fractions:
3360/720 - 36/720 = 3360 - 36/720 = 3324/720 - After reducing the fraction, the answer is 277/60
- In mixed form: 437/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-8/80 84/36-4/80 84/18-12/80 84/54-4/80 84/18-20/80 84/90-4/80 84/18-28/80