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Add 70/45 and 9/72

1st number: 1 25/45, 2nd number: 9/72

70/45 + 9/72 is 121/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 72 is 360
  2. For the 1st fraction, since 45 × 8 = 360,
    70/45 = 70 × 8/45 × 8 = 560/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    9/72 = 9 × 5/72 × 5 = 45/360
  4. Add the two fractions:
    560/360 + 45/360 = 560 + 45/360 = 605/360
  5. After reducing the fraction, the answer is 121/72
  6. In mixed form: 149/72

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