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Add 7/90 and 4/42

7/90 + 4/42 is 109/630.

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,
    7/90 = 7 × 7/90 × 7 = 49/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    4/42 = 4 × 15/42 × 15 = 60/630
  4. Add the two like fractions:
    49/630 + 60/630 = 49 + 60/630 = 109/630
  5. So, 7/90 + 4/42 = 109/630

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