Subtract 27/64 from 5/90
5/90 - 27/64 is -211/576.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 64 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 90 × 32 = 2880,
5/90 = 5 × 32/90 × 32 = 160/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
27/64 = 27 × 45/64 × 45 = 1215/2880 - Subtract the two like fractions:
160/2880 - 1215/2880 = 160 - 1215/2880 = -1055/2880 - After reducing the fraction, the answer is -211/576
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90-27/64 5/90-54/64 15/90-27/64 5/90-81/64 25/90-27/64 35/90-27/64