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Add 42/56 and 9/45

42/56 + 9/45 is 19/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 45 is 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    42/56 = 42 × 45/56 × 45 = 1890/2520
  3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
    9/45 = 9 × 56/45 × 56 = 504/2520
  4. Add the two fractions:
    1890/2520 + 504/2520 = 1890 + 504/2520 = 2394/2520
  5. 2394/2520 simplified gives 19/20
  6. So, 42/56 + 9/45 = 19/20

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