Subtract 81/36 from 4/30
1st number: 4/30, 2nd number: 2 9/36
4/30 - 81/36 is -127/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
4/30 = 4 × 6/30 × 6 = 24/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
81/36 = 81 × 5/36 × 5 = 405/180 - Subtract the two like fractions:
24/180 - 405/180 = 24 - 405/180 = -381/180 - After reducing the fraction, the answer is -127/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30-81/36 4/60-81/36 4/30-81/72 12/30-81/36 4/90-81/36 20/30-81/36 28/30-81/36