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Add 30/4 and 84/10

1st number: 7 2/4, 2nd number: 8 4/10

30/4 + 84/10 is 159/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 10 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    30/4 = 30 × 5/4 × 5 = 150/20
  3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
    84/10 = 84 × 2/10 × 2 = 168/20
  4. Add the two like fractions:
    150/20 + 168/20 = 150 + 168/20 = 318/20
  5. 318/20 simplified gives 159/10
  6. So, 30/4 + 84/10 = 159/10
    In mixed form: 159/10

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