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Add 49/72 and 20/70

49/72 + 20/70 is 487/504.

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,
    49/72 = 49 × 35/72 × 35 = 1715/2520
  3. Likewise, for the 2nd fraction, since 70 × 36 = 2520,
    20/70 = 20 × 36/70 × 36 = 720/2520
  4. Add the two like fractions:
    1715/2520 + 720/2520 = 1715 + 720/2520 = 2435/2520
  5. 2435/2520 simplified gives 487/504
  6. So, 49/72 + 20/70 = 487/504

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