Subtract 30/72 from 8/48
8/48 - 30/72 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
8/48 = 8 × 3/48 × 3 = 24/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
30/72 = 30 × 2/72 × 2 = 60/144 - Subtract the two like fractions:
24/144 - 60/144 = 24 - 60/144 = -36/144 - After reducing the fraction, the answer is -1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/48-30/72 8/48-60/72 8/96-30/72 24/48-30/72 8/48-90/72 40/48-30/72 56/48-30/72