Subtract 50/90 from 18/27
18/27 - 50/90 is 1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
18/27 = 18 × 10/27 × 10 = 180/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
50/90 = 50 × 3/90 × 3 = 150/270 - Subtract the two like fractions:
180/270 - 150/270 = 180 - 150/270 = 30/270 - After reducing the fraction, the answer is 1/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/27-50/90 18/54-50/90 54/27-50/90 18/81-50/90 90/27-50/90