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Add 42/8 and 20/30

1st number: 5 2/8, 2nd number: 20/30

42/8 + 20/30 is 71/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    42/8 = 42 × 15/8 × 15 = 630/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    20/30 = 20 × 4/30 × 4 = 80/120
  4. Add the two like fractions:
    630/120 + 80/120 = 630 + 80/120 = 710/120
  5. 710/120 simplified gives 71/12
  6. So, 42/8 + 20/30 = 71/12
    In mixed form: 511/12

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