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Add 42/90 and 3/63

42/90 + 3/63 is 18/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 63 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    42/90 = 42 × 7/90 × 7 = 294/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    3/63 = 3 × 10/63 × 10 = 30/630
  4. Add the two like fractions:
    294/630 + 30/630 = 294 + 30/630 = 324/630
  5. 324/630 simplified gives 18/35
  6. So, 42/90 + 3/63 = 18/35

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