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Add 75/7 and 42/20

1st number: 10 5/7, 2nd number: 2 2/20

75/7 + 42/20 is 897/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 7 × 20 = 140,
    75/7 = 75 × 20/7 × 20 = 1500/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    42/20 = 42 × 7/20 × 7 = 294/140
  4. Add the two like fractions:
    1500/140 + 294/140 = 1500 + 294/140 = 1794/140
  5. 1794/140 simplified gives 897/70
  6. So, 75/7 + 42/20 = 897/70
    In mixed form: 1257/70

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