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Add 12/8 and 21/90

1st number: 1 4/8, 2nd number: 21/90

12/8 + 21/90 is 26/15.

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,
    12/8 = 12 × 45/8 × 45 = 540/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    21/90 = 21 × 4/90 × 4 = 84/360
  4. Add the two like fractions:
    540/360 + 84/360 = 540 + 84/360 = 624/360
  5. 624/360 simplified gives 26/15
  6. So, 12/8 + 21/90 = 26/15
    In mixed form: 111/15

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