Subtract 8/30 from 27/45
27/45 - 8/30 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
27/45 = 27 × 2/45 × 2 = 54/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
8/30 = 8 × 3/30 × 3 = 24/90 - Subtract the two like fractions:
54/90 - 24/90 = 54 - 24/90 = 30/90 - After reducing the fraction, the answer is 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45-8/30 27/45-16/30 27/90-8/30 27/45-8/60 81/45-8/30 27/45-24/30 27/45-8/90 27/45-40/30 27/45-56/30