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Add 42/63 and 3/20

42/63 + 3/20 is 49/60.

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,
    42/63 = 42 × 20/63 × 20 = 840/1260
  3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
    3/20 = 3 × 63/20 × 63 = 189/1260
  4. Add the two like fractions:
    840/1260 + 189/1260 = 840 + 189/1260 = 1029/1260
  5. 1029/1260 simplified gives 49/60
  6. So, 42/63 + 3/20 = 49/60

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