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Add 20/18 and 21/72

1st number: 1 2/18, 2nd number: 21/72

20/18 + 21/72 is 101/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 72 is 72
  2. For the 1st fraction, since 18 × 4 = 72,
    20/18 = 20 × 4/18 × 4 = 80/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    21/72 = 21 × 1/72 × 1 = 21/72
  4. Add the two fractions:
    80/72 + 21/72 = 80 + 21/72 = 101/72
  5. So, 20/18 + 21/72 = 101/72
    In mixed form: 129/72

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