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Add 72/7 and 70/20

1st number: 10 2/7, 2nd number: 3 10/20

72/7 + 70/20 is 193/14.

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,
    72/7 = 72 × 20/7 × 20 = 1440/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    70/20 = 70 × 7/20 × 7 = 490/140
  4. Add the two like fractions:
    1440/140 + 490/140 = 1440 + 490/140 = 1930/140
  5. 1930/140 simplified gives 193/14
  6. So, 72/7 + 70/20 = 193/14
    In mixed form: 1311/14

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