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Add 18/20 and 40/7

1st number: 18/20, 2nd number: 5 5/7

18/20 + 40/7 is 463/70.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    18/20 = 18 × 7/20 × 7 = 126/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    40/7 = 40 × 20/7 × 20 = 800/140
  4. Add the two like fractions:
    126/140 + 800/140 = 126 + 800/140 = 926/140
  5. 926/140 simplified gives 463/70
  6. So, 18/20 + 40/7 = 463/70
    In mixed form: 643/70

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