Subtract 32/90 from 54/40
1st number: 1 14/40, 2nd number: 32/90
54/40 - 32/90 is 179/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
54/40 = 54 × 9/40 × 9 = 486/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
32/90 = 32 × 4/90 × 4 = 128/360 - Subtract the two like fractions:
486/360 - 128/360 = 486 - 128/360 = 358/360 - After reducing the fraction, the answer is 179/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-64/90 54/80-32/90 54/40-96/90