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Add 72/21 and 49/60

1st number: 3 9/21, 2nd number: 49/60

72/21 + 49/60 is 1783/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 21 × 20 = 420,
    72/21 = 72 × 20/21 × 20 = 1440/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    49/60 = 49 × 7/60 × 7 = 343/420
  4. Add the two like fractions:
    1440/420 + 343/420 = 1440 + 343/420 = 1783/420
  5. So, 72/21 + 49/60 = 1783/420
    In mixed form: 4103/420

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