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Add 70/56 and 42/21

1st number: 1 14/56, 2nd number: 2 0/21

70/56 + 42/21 is 13/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    70/56 = 70 × 3/56 × 3 = 210/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    42/21 = 42 × 8/21 × 8 = 336/168
  4. Add the two like fractions:
    210/168 + 336/168 = 210 + 336/168 = 546/168
  5. 546/168 simplified gives 13/4
  6. So, 70/56 + 42/21 = 13/4
    In mixed form: 31/4

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