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Add 20/63 and 4/72

20/63 + 4/72 is 47/126.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 63 × 8 = 504,
    20/63 = 20 × 8/63 × 8 = 160/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    4/72 = 4 × 7/72 × 7 = 28/504
  4. Add the two like fractions:
    160/504 + 28/504 = 160 + 28/504 = 188/504
  5. 188/504 simplified gives 47/126
  6. So, 20/63 + 4/72 = 47/126

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