Subtract 32/90 from 36/40
36/40 - 32/90 is 49/90.
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,
36/40 = 36 × 9/40 × 9 = 324/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
32/90 = 32 × 4/90 × 4 = 128/360 - Subtract the two like fractions:
324/360 - 128/360 = 324 - 128/360 = 196/360 - After reducing the fraction, the answer is 49/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40-32/90 36/40-64/90 36/80-32/90 36/40-96/90