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Add 30/72 and 42/45

30/72 + 42/45 is 27/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    30/72 = 30 × 5/72 × 5 = 150/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    42/45 = 42 × 8/45 × 8 = 336/360
  4. Add the two like fractions:
    150/360 + 336/360 = 150 + 336/360 = 486/360
  5. 486/360 simplified gives 27/20
  6. So, 30/72 + 42/45 = 27/20
    In mixed form: 17/20

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