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Add 60/21 and 70/15

1st number: 2 18/21, 2nd number: 4 10/15

60/21 + 70/15 is 158/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 15 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 21 × 5 = 105,
    60/21 = 60 × 5/21 × 5 = 300/105
  3. Likewise, for the 2nd fraction, since 15 × 7 = 105,
    70/15 = 70 × 7/15 × 7 = 490/105
  4. Add the two like fractions:
    300/105 + 490/105 = 300 + 490/105 = 790/105
  5. 790/105 simplified gives 158/21
  6. So, 60/21 + 70/15 = 158/21
    In mixed form: 711/21

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