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Add 7/20 and 9/35

7/20 + 9/35 is 17/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 35 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    7/20 = 7 × 7/20 × 7 = 49/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    9/35 = 9 × 4/35 × 4 = 36/140
  4. Add the two like fractions:
    49/140 + 36/140 = 49 + 36/140 = 85/140
  5. 85/140 simplified gives 17/28
  6. So, 7/20 + 9/35 = 17/28

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