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Add 70/20 and 45/8

1st number: 3 10/20, 2nd number: 5 5/8

70/20 + 45/8 is 73/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 20 × 2 = 40,
    70/20 = 70 × 2/20 × 2 = 140/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    45/8 = 45 × 5/8 × 5 = 225/40
  4. Add the two like fractions:
    140/40 + 225/40 = 140 + 225/40 = 365/40
  5. 365/40 simplified gives 73/8
  6. So, 70/20 + 45/8 = 73/8
    In mixed form: 91/8

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