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Add 90/70 and 3/18

1st number: 1 20/70, 2nd number: 3/18

90/70 + 3/18 is 61/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 18 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    90/70 = 90 × 9/70 × 9 = 810/630
  3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
    3/18 = 3 × 35/18 × 35 = 105/630
  4. Add the two like fractions:
    810/630 + 105/630 = 810 + 105/630 = 915/630
  5. 915/630 simplified gives 61/42
  6. So, 90/70 + 3/18 = 61/42
    In mixed form: 119/42

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