Add 7/81 and 21/98
7/81 + 21/98 is 341/1134.
Steps for adding fractions
- 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 - For the 1st fraction, since 81 × 98 = 7938,
7/81 = 7 × 98/81 × 98 = 686/7938 - Likewise, for the 2nd fraction, since 98 × 81 = 7938,
21/98 = 21 × 81/98 × 81 = 1701/7938 - Add the two like fractions:
686/7938 + 1701/7938 = 686 + 1701/7938 = 2387/7938 - 2387/7938 simplified gives 341/1134
- So, 7/81 + 21/98 = 341/1134
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