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Add 27/20 and 18/35

1st number: 1 7/20, 2nd number: 18/35

27/20 + 18/35 is 261/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 35 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    27/20 = 27 × 7/20 × 7 = 189/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    18/35 = 18 × 4/35 × 4 = 72/140
  4. Add the two fractions:
    189/140 + 72/140 = 189 + 72/140 = 261/140
  5. So, 27/20 + 18/35 = 261/140
    In mixed form: 1121/140

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