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Add 21/15 and 20/36

1st number: 1 6/15, 2nd number: 20/36

21/15 + 20/36 is 88/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 36 is 180
  2. For the 1st fraction, since 15 × 12 = 180,
    21/15 = 21 × 12/15 × 12 = 252/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    20/36 = 20 × 5/36 × 5 = 100/180
  4. Add the two fractions:
    252/180 + 100/180 = 252 + 100/180 = 352/180
  5. 352/180 simplified gives 88/45
  6. So, 21/15 + 20/36 = 88/45
    In mixed form: 143/45

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