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Add 90/8 and 9/30

1st number: 11 2/8, 2nd number: 9/30

90/8 + 9/30 is 231/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    90/8 = 90 × 15/8 × 15 = 1350/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    9/30 = 9 × 4/30 × 4 = 36/120
  4. Add the two like fractions:
    1350/120 + 36/120 = 1350 + 36/120 = 1386/120
  5. 1386/120 simplified gives 231/20
  6. So, 90/8 + 9/30 = 231/20
    In mixed form: 1111/20

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