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Add 25/28 and 42/45

25/28 + 42/45 is 767/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 45 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    25/28 = 25 × 45/28 × 45 = 1125/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    42/45 = 42 × 28/45 × 28 = 1176/1260
  4. Add the two like fractions:
    1125/1260 + 1176/1260 = 1125 + 1176/1260 = 2301/1260
  5. 2301/1260 simplified gives 767/420
  6. So, 25/28 + 42/45 = 767/420
    In mixed form: 1347/420

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