Subtract 45/12 from 84/48
1st number: 1 36/48, 2nd number: 3 9/12
84/48 - 45/12 is -2/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 48 × 1 = 48,
84/48 = 84 × 1/48 × 1 = 84/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
45/12 = 45 × 4/12 × 4 = 180/48 - Subtract the two like fractions:
84/48 - 180/48 = 84 - 180/48 = -96/48 - After reducing the fraction, the answer is -2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48-90/12 84/96-45/12 84/48-45/24 84/48-45/36 84/48-45/60 84/48-45/84