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Add 70/20 and 42/9

1st number: 3 10/20, 2nd number: 4 6/9

70/20 + 42/9 is 49/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    70/20 = 70 × 9/20 × 9 = 630/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    42/9 = 42 × 20/9 × 20 = 840/180
  4. Add the two like fractions:
    630/180 + 840/180 = 630 + 840/180 = 1470/180
  5. 1470/180 simplified gives 49/6
  6. So, 70/20 + 42/9 = 49/6
    In mixed form: 81/6

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