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Add 63/70 and 4/21

63/70 + 4/21 is 229/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 70 × 3 = 210,
    63/70 = 63 × 3/70 × 3 = 189/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    4/21 = 4 × 10/21 × 10 = 40/210
  4. Add the two like fractions:
    189/210 + 40/210 = 189 + 40/210 = 229/210
  5. So, 63/70 + 4/21 = 229/210
    In mixed form: 119/210

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