Subtract 42/30 from 8/36
1st number: 8/36, 2nd number: 1 12/30
8/36 - 42/30 is -53/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 30 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
8/36 = 8 × 5/36 × 5 = 40/180 - Likewise, for the 2nd fraction, since 30 × 6 = 180,
42/30 = 42 × 6/30 × 6 = 252/180 - Subtract the two like fractions:
40/180 - 252/180 = 40 - 252/180 = -212/180 - After reducing the fraction, the answer is -53/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/36-42/30 8/36-84/30 8/72-42/30 8/36-42/60 24/36-42/30 8/36-42/90 40/36-42/30 56/36-42/30