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Add 45/70 and 35/20

1st number: 45/70, 2nd number: 1 15/20

45/70 + 35/20 is 67/28.

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,
    45/70 = 45 × 2/70 × 2 = 90/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    35/20 = 35 × 7/20 × 7 = 245/140
  4. Add the two like fractions:
    90/140 + 245/140 = 90 + 245/140 = 335/140
  5. 335/140 simplified gives 67/28
  6. So, 45/70 + 35/20 = 67/28
    In mixed form: 211/28

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