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Add 20/35 and 20/60

20/35 + 20/60 is 19/21.

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,
    20/35 = 20 × 12/35 × 12 = 240/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    20/60 = 20 × 7/60 × 7 = 140/420
  4. Add the two fractions:
    240/420 + 140/420 = 240 + 140/420 = 380/420
  5. 380/420 simplified gives 19/21
  6. So, 20/35 + 20/60 = 19/21

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