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Add 70/20 and 7/4

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

70/20 + 7/4 is 21/4.

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,
    7/4 = 7 × 5/4 × 5 = 35/20
  4. Add the two like fractions:
    70/20 + 35/20 = 70 + 35/20 = 105/20
  5. 105/20 simplified gives 21/4
  6. So, 70/20 + 7/4 = 21/4
    In mixed form: 51/4

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