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Add 42/20 and 3/72

1st number: 2 2/20, 2nd number: 3/72

42/20 + 3/72 is 257/120.

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,
    42/20 = 42 × 18/20 × 18 = 756/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    3/72 = 3 × 5/72 × 5 = 15/360
  4. Add the two like fractions:
    756/360 + 15/360 = 756 + 15/360 = 771/360
  5. 771/360 simplified gives 257/120
  6. So, 42/20 + 3/72 = 257/120
    In mixed form: 217/120

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