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Add 15/8 and 90/84

1st number: 1 7/8, 2nd number: 1 6/84

15/8 + 90/84 is 165/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 84 is 168
  2. For the 1st fraction, since 8 × 21 = 168,
    15/8 = 15 × 21/8 × 21 = 315/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    90/84 = 90 × 2/84 × 2 = 180/168
  4. Add the two fractions:
    315/168 + 180/168 = 315 + 180/168 = 495/168
  5. 495/168 simplified gives 165/56
  6. So, 15/8 + 90/84 = 165/56
    In mixed form: 253/56

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