Answers

Add 10/81 and 21/98

10/81 + 21/98 is 383/1134.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 98 is 7938
   
   Next, find the equivalent fraction of both fractional numbers with denominator 7938
2. For the 1st fraction, since 81 × 98 = 7938,
   10/81 = 10 × 98/81 × 98 = 980/7938
3. Likewise, for the 2nd fraction, since 98 × 81 = 7938,
   21/98 = 21 × 81/98 × 81 = 1701/7938
4. Add the two like fractions:
   980/7938 + 1701/7938 = 980 + 1701/7938 = 2681/7938
5. 2681/7938 simplified gives 383/1134
6. So, 10/81 + 21/98 = 383/1134

MathStep (Works offline)

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

Related: ²⁰/₈₁+²¹/₉₈ ¹⁰/₈₁+⁴²/₉₈ ³⁰/₈₁+²¹/₉₈ ¹⁰/₈₁+⁶³/₉₈ ⁵⁰/₈₁+²¹/₉₈ ⁷⁰/₈₁+²¹/₉₈

Add Fractions Calculator