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Add 21/49 and 42/20

1st number: 21/49, 2nd number: 2 2/20

21/49 + 42/20 is 177/70.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 980
  2. For the 1st fraction, since 49 × 20 = 980,
    21/49 = 21 × 20/49 × 20 = 420/980
  3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
    42/20 = 42 × 49/20 × 49 = 2058/980
  4. Add the two like fractions:
    420/980 + 2058/980 = 420 + 2058/980 = 2478/980
  5. 2478/980 simplified gives 177/70
  6. So, 21/49 + 42/20 = 177/70
    In mixed form: 237/70

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