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Add 21/72 and 14/70

21/72 + 14/70 is 59/120.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 72 × 35 = 2520,
    21/72 = 21 × 35/72 × 35 = 735/2520
  3. Likewise, for the 2nd fraction, since 70 × 36 = 2520,
    14/70 = 14 × 36/70 × 36 = 504/2520
  4. Add the two like fractions:
    735/2520 + 504/2520 = 735 + 504/2520 = 1239/2520
  5. 1239/2520 simplified gives 59/120
  6. So, 21/72 + 14/70 = 59/120

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