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Add 72/60 and 42/90

1st number: 1 12/60, 2nd number: 42/90

72/60 + 42/90 is 5/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 90 is 180
  2. For the 1st fraction, since 60 × 3 = 180,
    72/60 = 72 × 3/60 × 3 = 216/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    42/90 = 42 × 2/90 × 2 = 84/180
  4. Add the two fractions:
    216/180 + 84/180 = 216 + 84/180 = 300/180
  5. After reducing the fraction, the answer is 5/3
  6. In mixed form: 12/3

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