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Add 18/8 and 12/90

1st number: 2 2/8, 2nd number: 12/90

18/8 + 12/90 is 143/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    18/8 = 18 × 45/8 × 45 = 810/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    12/90 = 12 × 4/90 × 4 = 48/360
  4. Add the two like fractions:
    810/360 + 48/360 = 810 + 48/360 = 858/360
  5. 858/360 simplified gives 143/60
  6. So, 18/8 + 12/90 = 143/60
    In mixed form: 223/60

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