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Add 42/84 and 45/25

1st number: 42/84, 2nd number: 1 20/25

42/84 + 45/25 is 23/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 25 is 2100
  2. For the 1st fraction, since 84 × 25 = 2100,
    42/84 = 42 × 25/84 × 25 = 1050/2100
  3. Likewise, for the 2nd fraction, since 25 × 84 = 2100,
    45/25 = 45 × 84/25 × 84 = 3780/2100
  4. Add the two fractions:
    1050/2100 + 3780/2100 = 1050 + 3780/2100 = 4830/2100
  5. 4830/2100 simplified gives 23/10
  6. So, 42/84 + 45/25 = 23/10
    In mixed form: 23/10

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