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Add 70/21 and 45/56

1st number: 3 7/21, 2nd number: 45/56

70/21 + 45/56 is 695/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 56 is 168
  2. For the 1st fraction, since 21 × 8 = 168,
    70/21 = 70 × 8/21 × 8 = 560/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    45/56 = 45 × 3/56 × 3 = 135/168
  4. Add the two fractions:
    560/168 + 135/168 = 560 + 135/168 = 695/168
  5. In mixed form: 423/168

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