Subtract 84/48 from 15/90
1st number: 15/90, 2nd number: 1 36/48
15/90 - 84/48 is -19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
15/90 = 15 × 8/90 × 8 = 120/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
84/48 = 84 × 15/48 × 15 = 1260/720 - Subtract the two like fractions:
120/720 - 1260/720 = 120 - 1260/720 = -1140/720 - After reducing the fraction, the answer is -19/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90-84/48 15/90-84/96 45/90-84/48 75/90-84/48