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Add 40/63 and 10/20

40/63 + 10/20 is 143/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 20 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 63 × 20 = 1260,
    40/63 = 40 × 20/63 × 20 = 800/1260
  3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
    10/20 = 10 × 63/20 × 63 = 630/1260
  4. Add the two like fractions:
    800/1260 + 630/1260 = 800 + 630/1260 = 1430/1260
  5. 1430/1260 simplified gives 143/126
  6. So, 40/63 + 10/20 = 143/126
    In mixed form: 117/126

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