Subtract 75/18 from 3/80
1st number: 3/80, 2nd number: 4 3/18
3/80 - 75/18 is -991/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
75/18 = 75 × 40/18 × 40 = 3000/720 - Subtract the two like fractions:
27/720 - 3000/720 = 27 - 3000/720 = -2973/720 - After reducing the fraction, the answer is -991/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80-75/18 3/80-75/36 9/80-75/18 3/80-75/54 15/80-75/18 3/80-75/90 21/80-75/18