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Add 30/8 and 90/42

1st number: 3 6/8, 2nd number: 2 6/42

30/8 + 90/42 is 165/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 42 is 168
  2. For the 1st fraction, since 8 × 21 = 168,
    30/8 = 30 × 21/8 × 21 = 630/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    90/42 = 90 × 4/42 × 4 = 360/168
  4. Add the two fractions:
    630/168 + 360/168 = 630 + 360/168 = 990/168
  5. 990/168 simplified gives 165/28
  6. So, 30/8 + 90/42 = 165/28
    In mixed form: 525/28

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