Subtract 48/90 from 7/12
7/12 - 48/90 is 1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
7/12 = 7 × 15/12 × 15 = 105/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
48/90 = 48 × 2/90 × 2 = 96/180 - Subtract the two like fractions:
105/180 - 96/180 = 105 - 96/180 = 9/180 - After reducing the fraction, the answer is 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-48/90 7/12-96/90 7/24-48/90 21/12-48/90 7/36-48/90 35/12-48/90 7/60-48/90 49/12-48/90 7/84-48/90