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Add 70/20 and 15/4

1st number: 3 10/20, 2nd number: 3 3/4

70/20 + 15/4 is 29/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 4 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 20 × 1 = 20,
    70/20 = 70 × 1/20 × 1 = 70/20
  3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
    15/4 = 15 × 5/4 × 5 = 75/20
  4. Add the two like fractions:
    70/20 + 75/20 = 70 + 75/20 = 145/20
  5. 145/20 simplified gives 29/4
  6. So, 70/20 + 15/4 = 29/4
    In mixed form: 71/4

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