Subtract 14/18 from 36/21
1st number: 1 15/21, 2nd number: 14/18
36/21 - 14/18 is 59/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
36/21 = 36 × 6/21 × 6 = 216/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126 - Subtract the two like fractions:
216/126 - 98/126 = 216 - 98/126 = 118/126 - After reducing the fraction, the answer is 59/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21-14/18 36/21-28/18 36/42-14/18 36/21-14/36 36/21-42/18 36/63-14/18 36/21-14/54 36/21-70/18 36/21-14/90 36/21-98/18