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Add 28/70 and 21/96

28/70 + 21/96 is 99/160.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 96 is 3360
  2. For the 1st fraction, since 70 × 48 = 3360,
    28/70 = 28 × 48/70 × 48 = 1344/3360
  3. Likewise, for the 2nd fraction, since 96 × 35 = 3360,
    21/96 = 21 × 35/96 × 35 = 735/3360
  4. Add the two fractions:
    1344/3360 + 735/3360 = 1344 + 735/3360 = 2079/3360
  5. After reducing the fraction, the answer is 99/160

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