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Add 42/4 and 90/84

1st number: 10 2/4, 2nd number: 1 6/84

42/4 + 90/84 is 81/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 84 is 84
  2. For the 1st fraction, since 4 × 21 = 84,
    42/4 = 42 × 21/4 × 21 = 882/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    90/84 = 90 × 1/84 × 1 = 90/84
  4. Add the two fractions:
    882/84 + 90/84 = 882 + 90/84 = 972/84
  5. 972/84 simplified gives 81/7
  6. So, 42/4 + 90/84 = 81/7
    In mixed form: 114/7

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