Subtract 63/81 from 30/14
1st number: 2 2/14, 2nd number: 63/81
30/14 - 63/81 is 86/63.
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,
30/14 = 30 × 81/14 × 81 = 2430/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
63/81 = 63 × 14/81 × 14 = 882/1134 - Subtract the two like fractions:
2430/1134 - 882/1134 = 2430 - 882/1134 = 1548/1134 - After reducing the fraction, the answer is 86/63
- In mixed form: 123/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14-63/81 30/28-63/81 90/14-63/81 30/42-63/81 30/70-63/81 30/98-63/81