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Add 90/80 and 7/84

1st number: 1 10/80, 2nd number: 7/84

90/80 + 7/84 is 29/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 84 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 80 × 21 = 1680,
    90/80 = 90 × 21/80 × 21 = 1890/1680
  3. Likewise, for the 2nd fraction, since 84 × 20 = 1680,
    7/84 = 7 × 20/84 × 20 = 140/1680
  4. Add the two like fractions:
    1890/1680 + 140/1680 = 1890 + 140/1680 = 2030/1680
  5. 2030/1680 simplified gives 29/24
  6. So, 90/80 + 7/84 = 29/24
    In mixed form: 15/24

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