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Add 42/30 and 7/20

1st number: 1 12/30, 2nd number: 7/20

42/30 + 7/20 is 7/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 20 is 60
  2. For the 1st fraction, since 30 × 2 = 60,
    42/30 = 42 × 2/30 × 2 = 84/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    7/20 = 7 × 3/20 × 3 = 21/60
  4. Add the two fractions:
    84/60 + 21/60 = 84 + 21/60 = 105/60
  5. 105/60 simplified gives 7/4
  6. So, 42/30 + 7/20 = 7/4
    In mixed form: 13/4

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