Subtract 18/16 from 6/72
1st number: 6/72, 2nd number: 1 2/16
6/72 - 18/16 is -25/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
6/72 = 6 × 2/72 × 2 = 12/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
18/16 = 18 × 9/16 × 9 = 162/144 - Subtract the two like fractions:
12/144 - 162/144 = 12 - 162/144 = -150/144 - After reducing the fraction, the answer is -25/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/72-18/16 6/72-36/16 6/72-18/32 18/72-18/16 6/72-54/16 6/72-18/48 30/72-18/16 6/72-90/16 6/72-18/80 42/72-18/16