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Add 45/50 and 15/21

45/50 + 15/21 is 113/70.

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,
    45/50 = 45 × 21/50 × 21 = 945/1050
  3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
    15/21 = 15 × 50/21 × 50 = 750/1050
  4. Add the two like fractions:
    945/1050 + 750/1050 = 945 + 750/1050 = 1695/1050
  5. 1695/1050 simplified gives 113/70
  6. So, 45/50 + 15/21 = 113/70
    In mixed form: 143/70

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