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Add 21/20 and 4/45

1st number: 1 1/20, 2nd number: 4/45

21/20 + 4/45 is 41/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    21/20 = 21 × 9/20 × 9 = 189/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    4/45 = 4 × 4/45 × 4 = 16/180
  4. Add the two like fractions:
    189/180 + 16/180 = 189 + 16/180 = 205/180
  5. 205/180 simplified gives 41/36
  6. So, 21/20 + 4/45 = 41/36
    In mixed form: 15/36

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