Subtract 35/90 from 54/80
54/80 - 35/90 is 103/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
54/80 = 54 × 9/80 × 9 = 486/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
35/90 = 35 × 8/90 × 8 = 280/720 - Subtract the two like fractions:
486/720 - 280/720 = 486 - 280/720 = 206/720 - After reducing the fraction, the answer is 103/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80-70/90