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Add 25/50 and 15/40

25/50 + 15/40 is 7/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 40 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 50 × 4 = 200,
    25/50 = 25 × 4/50 × 4 = 100/200
  3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
    15/40 = 15 × 5/40 × 5 = 75/200
  4. Add the two like fractions:
    100/200 + 75/200 = 100 + 75/200 = 175/200
  5. 175/200 simplified gives 7/8
  6. So, 25/50 + 15/40 = 7/8

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