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Add 72/7 and 84/20

1st number: 10 2/7, 2nd number: 4 4/20

72/7 + 84/20 is 507/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 20 is 140
  2. For the 1st fraction, since 7 × 20 = 140,
    72/7 = 72 × 20/7 × 20 = 1440/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    84/20 = 84 × 7/20 × 7 = 588/140
  4. Add the two fractions:
    1440/140 + 588/140 = 1440 + 588/140 = 2028/140
  5. After reducing the fraction, the answer is 507/35
  6. In mixed form: 1417/35

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