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Add 21/20 and 4/40

1st number: 1 1/20, 2nd number: 4/40

21/20 + 4/40 is 23/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 20 × 2 = 40,
    21/20 = 21 × 2/20 × 2 = 42/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    4/40 = 4 × 1/40 × 1 = 4/40
  4. Add the two like fractions:
    42/40 + 4/40 = 42 + 4/40 = 46/40
  5. 46/40 simplified gives 23/20
  6. So, 21/20 + 4/40 = 23/20
    In mixed form: 13/20

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