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Add 9/15 and 20/70

9/15 + 20/70 is 31/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 15 × 14 = 210,
    9/15 = 9 × 14/15 × 14 = 126/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    20/70 = 20 × 3/70 × 3 = 60/210
  4. Add the two like fractions:
    126/210 + 60/210 = 126 + 60/210 = 186/210
  5. 186/210 simplified gives 31/35
  6. So, 9/15 + 20/70 = 31/35

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