Add 21/98 and 15/18
21/98 + 15/18 is 22/21.
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,
15/18 = 15 × 49/18 × 49 = 735/882 - Add the two like fractions:
189/882 + 735/882 = 189 + 735/882 = 924/882 - 924/882 simplified gives 22/21
- So, 21/98 + 15/18 = 22/21
In mixed form: 11/21
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