Add 21/98 and 84/72
1st number: 21/98, 2nd number: 1 12/72
21/98 + 84/72 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 98 × 36 = 3528,
21/98 = 21 × 36/98 × 36 = 756/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
84/72 = 84 × 49/72 × 49 = 4116/3528 - Add the two like fractions:
756/3528 + 4116/3528 = 756 + 4116/3528 = 4872/3528 - 4872/3528 simplified gives 29/21
- So, 21/98 + 84/72 = 29/21
In mixed form: 18/21
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