Subtract 49/36 from 8/20
1st number: 8/20, 2nd number: 1 13/36
8/20 - 49/36 is -173/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
8/20 = 8 × 9/20 × 9 = 72/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
49/36 = 49 × 5/36 × 5 = 245/180 - Subtract the two like fractions:
72/180 - 245/180 = 72 - 245/180 = -173/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20-49/36 8/20-98/36 8/40-49/36 8/20-49/72 24/20-49/36 8/60-49/36 40/20-49/36 56/20-49/36