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Add 1/90 and 63/42

1st number: 1/90, 2nd number: 1 21/42

1/90 + 63/42 is 68/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 42 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    1/90 = 1 × 7/90 × 7 = 7/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    63/42 = 63 × 15/42 × 15 = 945/630
  4. Add the two like fractions:
    7/630 + 945/630 = 7 + 945/630 = 952/630
  5. 952/630 simplified gives 68/45
  6. So, 1/90 + 63/42 = 68/45
    In mixed form: 123/45

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