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Add 90/45 and 81/60

1st number: 2 0/45, 2nd number: 1 21/60

90/45 + 81/60 is 67/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 60 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    90/45 = 90 × 4/45 × 4 = 360/180
  3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
    81/60 = 81 × 3/60 × 3 = 243/180
  4. Add the two like fractions:
    360/180 + 243/180 = 360 + 243/180 = 603/180
  5. 603/180 simplified gives 67/20
  6. So, 90/45 + 81/60 = 67/20
    In mixed form: 37/20

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