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Add 90/84 and 42/30

1st number: 1 6/84, 2nd number: 1 12/30

90/84 + 42/30 is 173/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 30 is 420
  2. For the 1st fraction, since 84 × 5 = 420,
    90/84 = 90 × 5/84 × 5 = 450/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    42/30 = 42 × 14/30 × 14 = 588/420
  4. Add the two fractions:
    450/420 + 588/420 = 450 + 588/420 = 1038/420
  5. 1038/420 simplified gives 173/70
  6. So, 90/84 + 42/30 = 173/70
    In mixed form: 233/70

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