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Add 2/45 and 72/20

1st number: 2/45, 2nd number: 3 12/20

2/45 + 72/20 is 164/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    2/45 = 2 × 4/45 × 4 = 8/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    72/20 = 72 × 9/20 × 9 = 648/180
  4. Add the two like fractions:
    8/180 + 648/180 = 8 + 648/180 = 656/180
  5. 656/180 simplified gives 164/45
  6. So, 2/45 + 72/20 = 164/45
    In mixed form: 329/45

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