Add 84/98 and 42/21
1st number: 84/98, 2nd number: 2 0/21
84/98 + 42/21 is 20/7.
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,
42/21 = 42 × 14/21 × 14 = 588/294 - Add the two like fractions:
252/294 + 588/294 = 252 + 588/294 = 840/294 - 840/294 simplified gives 20/7
- So, 84/98 + 42/21 = 20/7
In mixed form: 26/7
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