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Add 10/20 and 42/63

10/20 + 42/63 is 7/6.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 20 × 63 = 1260,
    10/20 = 10 × 63/20 × 63 = 630/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    42/63 = 42 × 20/63 × 20 = 840/1260
  4. Add the two like fractions:
    630/1260 + 840/1260 = 630 + 840/1260 = 1470/1260
  5. 1470/1260 simplified gives 7/6
  6. So, 10/20 + 42/63 = 7/6
    In mixed form: 11/6

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