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Add 84/42 and 3/90

1st number: 2 0/42, 2nd number: 3/90

84/42 + 3/90 is 61/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    84/42 = 84 × 15/42 × 15 = 1260/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    3/90 = 3 × 7/90 × 7 = 21/630
  4. Add the two fractions:
    1260/630 + 21/630 = 1260 + 21/630 = 1281/630
  5. 1281/630 simplified gives 61/30
  6. So, 84/42 + 3/90 = 61/30
    In mixed form: 21/30

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