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Add 15/50 and 7/21

15/50 + 7/21 is 19/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 21 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 50 × 21 = 1050,
    15/50 = 15 × 21/50 × 21 = 315/1050
  3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
    7/21 = 7 × 50/21 × 50 = 350/1050
  4. Add the two like fractions:
    315/1050 + 350/1050 = 315 + 350/1050 = 665/1050
  5. 665/1050 simplified gives 19/30
  6. So, 15/50 + 7/21 = 19/30

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