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Add 72/90 and 45/56

72/90 + 45/56 is 449/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 56 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 90 × 28 = 2520,
    72/90 = 72 × 28/90 × 28 = 2016/2520
  3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
    45/56 = 45 × 45/56 × 45 = 2025/2520
  4. Add the two like fractions:
    2016/2520 + 2025/2520 = 2016 + 2025/2520 = 4041/2520
  5. 4041/2520 simplified gives 449/280
  6. So, 72/90 + 45/56 = 449/280
    In mixed form: 1169/280

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