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Add 30/20 and 7/72

1st number: 1 10/20, 2nd number: 7/72

30/20 + 7/72 is 115/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 20 × 18 = 360,
    30/20 = 30 × 18/20 × 18 = 540/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    7/72 = 7 × 5/72 × 5 = 35/360
  4. Add the two like fractions:
    540/360 + 35/360 = 540 + 35/360 = 575/360
  5. 575/360 simplified gives 115/72
  6. So, 30/20 + 7/72 = 115/72
    In mixed form: 143/72

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