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Add 75/20 and 15/70

1st number: 3 15/20, 2nd number: 15/70

75/20 + 15/70 is 111/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 70 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    75/20 = 75 × 7/20 × 7 = 525/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    15/70 = 15 × 2/70 × 2 = 30/140
  4. Add the two fractions:
    525/140 + 30/140 = 525 + 30/140 = 555/140
  5. 555/140 simplified gives 111/28
  6. So, 75/20 + 15/70 = 111/28
    In mixed form: 327/28

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