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Add 18/90 and 7/8

18/90 + 7/8 is 43/40.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    18/90 = 18 × 4/90 × 4 = 72/360
  3. Likewise, for the 2nd fraction, since 8 × 45 = 360,
    7/8 = 7 × 45/8 × 45 = 315/360
  4. Add the two like fractions:
    72/360 + 315/360 = 72 + 315/360 = 387/360
  5. 387/360 simplified gives 43/40
  6. So, 18/90 + 7/8 = 43/40
    In mixed form: 13/40

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