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Add 70/42 and 50/90

1st number: 1 28/42, 2nd number: 50/90

70/42 + 50/90 is 20/9.

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,
    70/42 = 70 × 15/42 × 15 = 1050/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    50/90 = 50 × 7/90 × 7 = 350/630
  4. Add the two like fractions:
    1050/630 + 350/630 = 1050 + 350/630 = 1400/630
  5. 1400/630 simplified gives 20/9
  6. So, 70/42 + 50/90 = 20/9
    In mixed form: 22/9

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