Subtract 36/60 from 8/90
8/90 - 36/60 is -23/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
8/90 = 8 × 2/90 × 2 = 16/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
36/60 = 36 × 3/60 × 3 = 108/180 - Subtract the two like fractions:
16/180 - 108/180 = 16 - 108/180 = -92/180 - After reducing the fraction, the answer is -23/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90-36/60 8/90-72/60 24/90-36/60 40/90-36/60 56/90-36/60