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Add 30/40 and 12/45

30/40 + 12/45 is 61/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 45 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    30/40 = 30 × 9/40 × 9 = 270/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    12/45 = 12 × 8/45 × 8 = 96/360
  4. Add the two fractions:
    270/360 + 96/360 = 270 + 96/360 = 366/360
  5. After reducing the fraction, the answer is 61/60
  6. In mixed form: 11/60

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