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Add 60/70 and 42/21

1st number: 60/70, 2nd number: 2 0/21

60/70 + 42/21 is 20/7.

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,
    42/21 = 42 × 10/21 × 10 = 420/210
  4. Add the two fractions:
    180/210 + 420/210 = 180 + 420/210 = 600/210
  5. 600/210 simplified gives 20/7
  6. So, 60/70 + 42/21 = 20/7
    In mixed form: 26/7

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