Answers

Subtract 75/81 from 1/98

1/98 - 75/81 is -2423/2646.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 81 is 7938
   
   Next, find the equivalent fraction of both fractional numbers with denominator 7938
2. For the 1st fraction, since 98 × 81 = 7938,
   1/98 = 1 × 81/98 × 81 = 81/7938
3. Likewise, for the 2nd fraction, since 81 × 98 = 7938,
   75/81 = 75 × 98/81 × 98 = 7350/7938
4. Subtract the two like fractions:
   81/7938 - 7350/7938 = 81 - 7350/7938 = -7269/7938
5. After reducing the fraction, the answer is -2423/2646

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ²/₉₈-⁷⁵/₈₁ ³/₉₈-⁷⁵/₈₁ ⁵/₉₈-⁷⁵/₈₁ ⁷/₉₈-⁷⁵/₈₁

Subtract Fractions Calculator