Add 21/98 and 30/18
1st number: 21/98, 2nd number: 1 12/18
21/98 + 30/18 is 79/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
21/98 = 21 × 9/98 × 9 = 189/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
30/18 = 30 × 49/18 × 49 = 1470/882 - Add the two like fractions:
189/882 + 1470/882 = 189 + 1470/882 = 1659/882 - 1659/882 simplified gives 79/42
- So, 21/98 + 30/18 = 79/42
In mixed form: 137/42
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