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Add 1/7 and 4/20

1/7 + 4/20 is 12/35.

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,
    1/7 = 1 × 20/7 × 20 = 20/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    4/20 = 4 × 7/20 × 7 = 28/140
  4. Add the two like fractions:
    20/140 + 28/140 = 20 + 28/140 = 48/140
  5. 48/140 simplified gives 12/35
  6. So, 1/7 + 4/20 = 12/35

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