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Add 1/20 and 42/49

1/20 + 42/49 is 127/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 49 is 980

    Next, find the equivalent fraction of both fractional numbers with denominator 980
  2. For the 1st fraction, since 20 × 49 = 980,
    1/20 = 1 × 49/20 × 49 = 49/980
  3. Likewise, for the 2nd fraction, since 49 × 20 = 980,
    42/49 = 42 × 20/49 × 20 = 840/980
  4. Add the two like fractions:
    49/980 + 840/980 = 49 + 840/980 = 889/980
  5. 889/980 simplified gives 127/140
  6. So, 1/20 + 42/49 = 127/140

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