Subtract 3/80 from 36/90
36/90 - 3/80 is 29/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
36/90 = 36 × 8/90 × 8 = 288/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Subtract the two like fractions:
288/720 - 27/720 = 288 - 27/720 = 261/720 - After reducing the fraction, the answer is 29/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/90-3/80 36/90-6/80 36/90-9/80 36/90-15/80 36/90-21/80