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Add 18/20 and 9/7

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

18/20 + 9/7 is 153/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 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,
    9/7 = 9 × 20/7 × 20 = 180/140
  4. Add the two fractions:
    126/140 + 180/140 = 126 + 180/140 = 306/140
  5. 306/140 simplified gives 153/70
  6. So, 18/20 + 9/7 = 153/70
    In mixed form: 213/70

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