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Add 42/10 and 15/72

1st number: 4 2/10, 2nd number: 15/72

42/10 + 15/72 is 529/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 10 × 36 = 360,
    42/10 = 42 × 36/10 × 36 = 1512/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    15/72 = 15 × 5/72 × 5 = 75/360
  4. Add the two like fractions:
    1512/360 + 75/360 = 1512 + 75/360 = 1587/360
  5. 1587/360 simplified gives 529/120
  6. So, 42/10 + 15/72 = 529/120
    In mixed form: 449/120

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