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Add 4/70 and 28/60

4/70 + 28/60 is 11/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 60 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    4/70 = 4 × 6/70 × 6 = 24/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    28/60 = 28 × 7/60 × 7 = 196/420
  4. Add the two fractions:
    24/420 + 196/420 = 24 + 196/420 = 220/420
  5. 220/420 simplified gives 11/21
  6. So, 4/70 + 28/60 = 11/21

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