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Add 21/28 and 10/25

21/28 + 10/25 is 23/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 25 is 700

    Next, find the equivalent fraction of both fractional numbers with denominator 700
  2. For the 1st fraction, since 28 × 25 = 700,
    21/28 = 21 × 25/28 × 25 = 525/700
  3. Likewise, for the 2nd fraction, since 25 × 28 = 700,
    10/25 = 10 × 28/25 × 28 = 280/700
  4. Add the two like fractions:
    525/700 + 280/700 = 525 + 280/700 = 805/700
  5. 805/700 simplified gives 23/20
  6. So, 21/28 + 10/25 = 23/20
    In mixed form: 13/20

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