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Add 1/90 and 70/42

1st number: 1/90, 2nd number: 1 28/42

1/90 + 70/42 is 151/90.

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,
    70/42 = 70 × 15/42 × 15 = 1050/630
  4. Add the two like fractions:
    7/630 + 1050/630 = 7 + 1050/630 = 1057/630
  5. 1057/630 simplified gives 151/90
  6. So, 1/90 + 70/42 = 151/90
    In mixed form: 161/90

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