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Add 5/8 and 18/9

1st number: 5/8, 2nd number: 2 0/9

5/8 + 18/9 is 21/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 9 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    5/8 = 5 × 9/8 × 9 = 45/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    18/9 = 18 × 8/9 × 8 = 144/72
  4. Add the two like fractions:
    45/72 + 144/72 = 45 + 144/72 = 189/72
  5. 189/72 simplified gives 21/8
  6. So, 5/8 + 18/9 = 21/8
    In mixed form: 25/8

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