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Add 20/72 and 7/63

20/72 + 7/63 is 7/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    20/72 = 20 × 7/72 × 7 = 140/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    7/63 = 7 × 8/63 × 8 = 56/504
  4. Add the two like fractions:
    140/504 + 56/504 = 140 + 56/504 = 196/504
  5. 196/504 simplified gives 7/18
  6. So, 20/72 + 7/63 = 7/18

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