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Add 36/20 and 21/28

1st number: 1 16/20, 2nd number: 21/28

36/20 + 21/28 is 51/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 28 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    36/20 = 36 × 7/20 × 7 = 252/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    21/28 = 21 × 5/28 × 5 = 105/140
  4. Add the two fractions:
    252/140 + 105/140 = 252 + 105/140 = 357/140
  5. After reducing the fraction, the answer is 51/20
  6. In mixed form: 211/20

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