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Add 21/8 and 16/90

1st number: 2 5/8, 2nd number: 16/90

21/8 + 16/90 is 1009/360.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 90 is 360
  2. For the 1st fraction, since 8 × 45 = 360,
    21/8 = 21 × 45/8 × 45 = 945/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    16/90 = 16 × 4/90 × 4 = 64/360
  4. Add the two fractions:
    945/360 + 64/360 = 945 + 64/360 = 1009/360
  5. In mixed form: 2289/360

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