Subtract 8/15 from 18/16
1st number: 1 2/16, 2nd number: 8/15
18/16 - 8/15 is 71/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
18/16 = 18 × 15/16 × 15 = 270/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
8/15 = 8 × 16/15 × 16 = 128/240 - Subtract the two like fractions:
270/240 - 128/240 = 270 - 128/240 = 142/240 - After reducing the fraction, the answer is 71/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/16-8/15 18/16-16/15 18/32-8/15 18/16-8/30 54/16-8/15 18/16-24/15 18/48-8/15 18/16-8/45 90/16-8/15 18/16-40/15 18/80-8/15 18/16-8/75 18/16-56/15