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Add 60/70 and 20/84

60/70 + 20/84 is 23/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 84 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    60/70 = 60 × 6/70 × 6 = 360/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    20/84 = 20 × 5/84 × 5 = 100/420
  4. Add the two fractions:
    360/420 + 100/420 = 360 + 100/420 = 460/420
  5. 460/420 simplified gives 23/21
  6. So, 60/70 + 20/84 = 23/21
    In mixed form: 12/21

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