Add 81/98 and 9/80
81/98 + 9/80 is 3681/3920.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 98 × 40 = 3920,
81/98 = 81 × 40/98 × 40 = 3240/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
9/80 = 9 × 49/80 × 49 = 441/3920 - Add the two like fractions:
3240/3920 + 441/3920 = 3240 + 441/3920 = 3681/3920 - So, 81/98 + 9/80 = 3681/3920
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