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Add 84/20 and 28/7

1st number: 4 4/20, 2nd number: 4 0/7

84/20 + 28/7 is 41/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    84/20 = 84 × 7/20 × 7 = 588/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    28/7 = 28 × 20/7 × 20 = 560/140
  4. Add the two like fractions:
    588/140 + 560/140 = 588 + 560/140 = 1148/140
  5. 1148/140 simplified gives 41/5
  6. So, 84/20 + 28/7 = 41/5
    In mixed form: 81/5

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