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Add 81/18 and 63/8

1st number: 4 9/18, 2nd number: 7 7/8

81/18 + 63/8 is 99/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 18 × 4 = 72,
    81/18 = 81 × 4/18 × 4 = 324/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    63/8 = 63 × 9/8 × 9 = 567/72
  4. Add the two like fractions:
    324/72 + 567/72 = 324 + 567/72 = 891/72
  5. 891/72 simplified gives 99/8
  6. So, 81/18 + 63/8 = 99/8
    In mixed form: 123/8

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