Subtract 18/72 from 14/8
1st number: 1 6/8, 2nd number: 18/72
14/8 - 18/72 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
14/8 = 14 × 9/8 × 9 = 126/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Subtract the two like fractions:
126/72 - 18/72 = 126 - 18/72 = 108/72 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8-18/72 14/8-36/72 14/16-18/72 42/8-18/72 14/8-54/72 14/24-18/72 70/8-18/72 14/8-90/72 14/40-18/72 98/8-18/72 14/56-18/72