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Add 25/30 and 20/21

25/30 + 20/21 is 25/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    25/30 = 25 × 7/30 × 7 = 175/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    20/21 = 20 × 10/21 × 10 = 200/210
  4. Add the two like fractions:
    175/210 + 200/210 = 175 + 200/210 = 375/210
  5. 375/210 simplified gives 25/14
  6. So, 25/30 + 20/21 = 25/14
    In mixed form: 111/14

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