Subtract 7/80 from 18/6
1st number: 3 0/6, 2nd number: 7/80
18/6 - 7/80 is 233/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 6 × 40 = 240,
18/6 = 18 × 40/6 × 40 = 720/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
7/80 = 7 × 3/80 × 3 = 21/240 - Subtract the two like fractions:
720/240 - 21/240 = 720 - 21/240 = 699/240 - After reducing the fraction, the answer is 233/80
- In mixed form: 273/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6-7/80 18/6-14/80 18/12-7/80 54/6-7/80 18/6-21/80 90/6-7/80 18/6-35/80 18/30-7/80 18/6-49/80 18/42-7/80