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Add 70/40 and 8/21

1st number: 1 30/40, 2nd number: 8/21

70/40 + 8/21 is 179/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 21 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    70/40 = 70 × 21/40 × 21 = 1470/840
  3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
    8/21 = 8 × 40/21 × 40 = 320/840
  4. Add the two like fractions:
    1470/840 + 320/840 = 1470 + 320/840 = 1790/840
  5. 1790/840 simplified gives 179/84
  6. So, 70/40 + 8/21 = 179/84
    In mixed form: 211/84

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