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Add 35/18 and 72/20

1st number: 1 17/18, 2nd number: 3 12/20

35/18 + 72/20 is 499/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    35/18 = 35 × 10/18 × 10 = 350/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    72/20 = 72 × 9/20 × 9 = 648/180
  4. Add the two like fractions:
    350/180 + 648/180 = 350 + 648/180 = 998/180
  5. 998/180 simplified gives 499/90
  6. So, 35/18 + 72/20 = 499/90
    In mixed form: 549/90

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