Subtract 12/48 from 8/45
8/45 - 12/48 is -13/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
8/45 = 8 × 16/45 × 16 = 128/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
12/48 = 12 × 15/48 × 15 = 180/720 - Subtract the two like fractions:
128/720 - 180/720 = 128 - 180/720 = -52/720 - After reducing the fraction, the answer is -13/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-12/48 8/45-24/48 8/90-12/48 8/45-12/96 24/45-12/48 8/45-36/48 40/45-12/48 8/45-60/48 56/45-12/48 8/45-84/48