Add 12/81 and 42/98
12/81 + 42/98 is 109/189.
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,
12/81 = 12 × 98/81 × 98 = 1176/7938 - Likewise, for the 2nd fraction, since 98 × 81 = 7938,
42/98 = 42 × 81/98 × 81 = 3402/7938 - Add the two like fractions:
1176/7938 + 3402/7938 = 1176 + 3402/7938 = 4578/7938 - 4578/7938 simplified gives 109/189
- So, 12/81 + 42/98 = 109/189
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