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Add 1/7 and 21/63

1/7 + 21/63 is 10/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 63 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    1/7 = 1 × 9/7 × 9 = 9/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    21/63 = 21 × 1/63 × 1 = 21/63
  4. Add the two fractions:
    9/63 + 21/63 = 9 + 21/63 = 30/63
  5. 30/63 simplified gives 10/21
  6. So, 1/7 + 21/63 = 10/21

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