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Add 21/50 and 42/60

21/50 + 42/60 is 28/25.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 60 is 300

    Next, find the equivalent fraction of both fractional numbers with denominator 300
  2. For the 1st fraction, since 50 × 6 = 300,
    21/50 = 21 × 6/50 × 6 = 126/300
  3. Likewise, for the 2nd fraction, since 60 × 5 = 300,
    42/60 = 42 × 5/60 × 5 = 210/300
  4. Add the two like fractions:
    126/300 + 210/300 = 126 + 210/300 = 336/300
  5. 336/300 simplified gives 28/25
  6. So, 21/50 + 42/60 = 28/25
    In mixed form: 13/25

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