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Add 45/7 and 18/20

1st number: 6 3/7, 2nd number: 18/20

45/7 + 18/20 is 513/70.

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,
    45/7 = 45 × 20/7 × 20 = 900/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    18/20 = 18 × 7/20 × 7 = 126/140
  4. Add the two like fractions:
    900/140 + 126/140 = 900 + 126/140 = 1026/140
  5. 1026/140 simplified gives 513/70
  6. So, 45/7 + 18/20 = 513/70
    In mixed form: 723/70

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