Subtract 14/90 from 20/48
20/48 - 14/90 is 47/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
20/48 = 20 × 15/48 × 15 = 300/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
14/90 = 14 × 8/90 × 8 = 112/720 - Subtract the two like fractions:
300/720 - 112/720 = 300 - 112/720 = 188/720 - After reducing the fraction, the answer is 47/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/48-14/90 20/48-28/90 20/96-14/90 60/48-14/90 20/48-42/90 20/48-70/90 20/48-98/90