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Add 27/20 and 10/72

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

27/20 + 10/72 is 67/45.

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,
    27/20 = 27 × 18/20 × 18 = 486/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    10/72 = 10 × 5/72 × 5 = 50/360
  4. Add the two like fractions:
    486/360 + 50/360 = 486 + 50/360 = 536/360
  5. 536/360 simplified gives 67/45
  6. So, 27/20 + 10/72 = 67/45
    In mixed form: 122/45

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