Add 81/98 and 72/30
1st number: 81/98, 2nd number: 2 12/30
81/98 + 72/30 is 1581/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 98 × 15 = 1470,
81/98 = 81 × 15/98 × 15 = 1215/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
72/30 = 72 × 49/30 × 49 = 3528/1470 - Add the two like fractions:
1215/1470 + 3528/1470 = 1215 + 3528/1470 = 4743/1470 - 4743/1470 simplified gives 1581/490
- So, 81/98 + 72/30 = 1581/490
In mixed form: 3111/490
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