Subtract 48/12 from 3/90
1st number: 3/90, 2nd number: 4 0/12
3/90 - 48/12 is -119/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
3/90 = 3 × 2/90 × 2 = 6/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
48/12 = 48 × 15/12 × 15 = 720/180 - Subtract the two like fractions:
6/180 - 720/180 = 6 - 720/180 = -714/180 - After reducing the fraction, the answer is -119/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/90-48/12 3/90-96/12 3/90-48/24 9/90-48/12 3/90-48/36 15/90-48/12 3/90-48/60 21/90-48/12 3/90-48/84