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Add 36/20 and 21/90

1st number: 1 16/20, 2nd number: 21/90

36/20 + 21/90 is 61/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 90 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    36/20 = 36 × 9/20 × 9 = 324/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    21/90 = 21 × 2/90 × 2 = 42/180
  4. Add the two fractions:
    324/180 + 42/180 = 324 + 42/180 = 366/180
  5. After reducing the fraction, the answer is 61/30
  6. In mixed form: 21/30

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