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Add 63/42 and 7/90

1st number: 1 21/42, 2nd number: 7/90

63/42 + 7/90 is 71/45.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    63/42 = 63 × 15/42 × 15 = 945/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    7/90 = 7 × 7/90 × 7 = 49/630
  4. Add the two like fractions:
    945/630 + 49/630 = 945 + 49/630 = 994/630
  5. 994/630 simplified gives 71/45
  6. So, 63/42 + 7/90 = 71/45
    In mixed form: 126/45

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