Subtract 7/80 from 18/16
1st number: 1 2/16, 2nd number: 7/80
18/16 - 7/80 is 83/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
18/16 = 18 × 5/16 × 5 = 90/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80 - Subtract the two like fractions:
90/80 - 7/80 = 90 - 7/80 = 83/80 - In mixed form: 13/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/16-7/80 18/16-14/80 18/32-7/80 54/16-7/80 18/16-21/80 18/48-7/80 90/16-7/80 18/16-35/80 18/80-7/80 18/16-49/80