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Add 20/21 and 21/98

20/21 + 21/98 is 7/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 98 is 294
  2. For the 1st fraction, since 21 × 14 = 294,
    20/21 = 20 × 14/21 × 14 = 280/294
  3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
    21/98 = 21 × 3/98 × 3 = 63/294
  4. Add the two fractions:
    280/294 + 63/294 = 280 + 63/294 = 343/294
  5. 343/294 simplified gives 7/6
  6. So, 20/21 + 21/98 = 7/6
    In mixed form: 11/6

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