Add 21/63 and 42/98
21/63 + 42/98 is 16/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 98 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 63 × 14 = 882,
21/63 = 21 × 14/63 × 14 = 294/882 - Likewise, for the 2nd fraction, since 98 × 9 = 882,
42/98 = 42 × 9/98 × 9 = 378/882 - Add the two like fractions:
294/882 + 378/882 = 294 + 378/882 = 672/882 - 672/882 simplified gives 16/21
- So, 21/63 + 42/98 = 16/21
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