Subtract 48/72 from 18/8
1st number: 2 2/8, 2nd number: 48/72
18/8 - 48/72 is 19/12.
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,
18/8 = 18 × 9/8 × 9 = 162/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
48/72 = 48 × 1/72 × 1 = 48/72 - Subtract the two like fractions:
162/72 - 48/72 = 162 - 48/72 = 114/72 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8-48/72 18/8-96/72 18/16-48/72 54/8-48/72 18/24-48/72 90/8-48/72 18/40-48/72 18/56-48/72