Add 84/98 and 15/21
84/98 + 15/21 is 11/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 21 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
84/98 = 84 × 3/98 × 3 = 252/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
15/21 = 15 × 14/21 × 14 = 210/294 - Add the two like fractions:
252/294 + 210/294 = 252 + 210/294 = 462/294 - 462/294 simplified gives 11/7
- So, 84/98 + 15/21 = 11/7
In mixed form: 14/7
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