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Add 49/70 and 9/20

49/70 + 9/20 is 23/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 70 × 2 = 140,
    49/70 = 49 × 2/70 × 2 = 98/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    9/20 = 9 × 7/20 × 7 = 63/140
  4. Add the two like fractions:
    98/140 + 63/140 = 98 + 63/140 = 161/140
  5. 161/140 simplified gives 23/20
  6. So, 49/70 + 9/20 = 23/20
    In mixed form: 13/20

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