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Add 49/70 and 21/72

49/70 + 21/72 is 119/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 72 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 70 × 36 = 2520,
    49/70 = 49 × 36/70 × 36 = 1764/2520
  3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
    21/72 = 21 × 35/72 × 35 = 735/2520
  4. Add the two like fractions:
    1764/2520 + 735/2520 = 1764 + 735/2520 = 2499/2520
  5. 2499/2520 simplified gives 119/120
  6. So, 49/70 + 21/72 = 119/120

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