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Add 4/90 and 15/64

4/90 + 15/64 is 803/2880.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 64 is 2880
  2. For the 1st fraction, since 90 × 32 = 2880,
    4/90 = 4 × 32/90 × 32 = 128/2880
  3. Likewise, for the 2nd fraction, since 64 × 45 = 2880,
    15/64 = 15 × 45/64 × 45 = 675/2880
  4. Add the two fractions:
    128/2880 + 675/2880 = 128 + 675/2880 = 803/2880

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