Subtract 3/18 from 36/30
1st number: 1 6/30, 2nd number: 3/18
36/30 - 3/18 is 31/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
36/30 = 36 × 3/30 × 3 = 108/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Subtract the two like fractions:
108/90 - 15/90 = 108 - 15/90 = 93/90 - After reducing the fraction, the answer is 31/30
- In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30-3/18 36/30-6/18 36/60-3/18 36/30-3/36 36/30-9/18 36/90-3/18 36/30-3/54 36/30-15/18 36/30-3/90 36/30-21/18