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Add 72/16 and 42/15

1st number: 4 8/16, 2nd number: 2 12/15

72/16 + 42/15 is 73/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 15 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 16 × 15 = 240,
    72/16 = 72 × 15/16 × 15 = 1080/240
  3. Likewise, for the 2nd fraction, since 15 × 16 = 240,
    42/15 = 42 × 16/15 × 16 = 672/240
  4. Add the two like fractions:
    1080/240 + 672/240 = 1080 + 672/240 = 1752/240
  5. 1752/240 simplified gives 73/10
  6. So, 72/16 + 42/15 = 73/10
    In mixed form: 73/10

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