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Add 5/35 and 21/60

5/35 + 21/60 is 69/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 60 is 420
  2. For the 1st fraction, since 35 × 12 = 420,
    5/35 = 5 × 12/35 × 12 = 60/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    21/60 = 21 × 7/60 × 7 = 147/420
  4. Add the two fractions:
    60/420 + 147/420 = 60 + 147/420 = 207/420
  5. 207/420 simplified gives 69/140
  6. So, 5/35 + 21/60 = 69/140

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