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Add 20/70 and 10/15

20/70 + 10/15 is 20/21.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 70 × 3 = 210,
    20/70 = 20 × 3/70 × 3 = 60/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    10/15 = 10 × 14/15 × 14 = 140/210
  4. Add the two like fractions:
    60/210 + 140/210 = 60 + 140/210 = 200/210
  5. 200/210 simplified gives 20/21
  6. So, 20/70 + 10/15 = 20/21

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