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Add 21/45 and 42/4

1st number: 21/45, 2nd number: 10 2/4

21/45 + 42/4 is 329/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 4 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    21/45 = 21 × 4/45 × 4 = 84/180
  3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
    42/4 = 42 × 45/4 × 45 = 1890/180
  4. Add the two like fractions:
    84/180 + 1890/180 = 84 + 1890/180 = 1974/180
  5. 1974/180 simplified gives 329/30
  6. So, 21/45 + 42/4 = 329/30
    In mixed form: 1029/30

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