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Add 40/15 and 4/7

1st number: 2 10/15, 2nd number: 4/7

40/15 + 4/7 is 68/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 7 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 15 × 7 = 105,
    40/15 = 40 × 7/15 × 7 = 280/105
  3. Likewise, for the 2nd fraction, since 7 × 15 = 105,
    4/7 = 4 × 15/7 × 15 = 60/105
  4. Add the two like fractions:
    280/105 + 60/105 = 280 + 60/105 = 340/105
  5. 340/105 simplified gives 68/21
  6. So, 40/15 + 4/7 = 68/21
    In mixed form: 35/21

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