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Add 60/70 and 6/21

60/70 + 6/21 is 8/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 21 is 210
  2. For the 1st fraction, since 70 × 3 = 210,
    60/70 = 60 × 3/70 × 3 = 180/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    6/21 = 6 × 10/21 × 10 = 60/210
  4. Add the two fractions:
    180/210 + 60/210 = 180 + 60/210 = 240/210
  5. 240/210 simplified gives 8/7
  6. So, 60/70 + 6/21 = 8/7
    In mixed form: 11/7

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