Subtract 9/81 from 18/14
1st number: 1 4/14, 2nd number: 9/81
18/14 - 9/81 is 74/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 14 × 81 = 1134,
18/14 = 18 × 81/14 × 81 = 1458/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
9/81 = 9 × 14/81 × 14 = 126/1134 - Subtract the two like fractions:
1458/1134 - 126/1134 = 1458 - 126/1134 = 1332/1134 - After reducing the fraction, the answer is 74/63
- In mixed form: 111/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14-9/81 18/14-18/81 18/28-9/81 54/14-9/81 18/14-27/81 18/42-9/81 90/14-9/81 18/14-45/81 18/70-9/81 18/14-63/81 18/98-9/81