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Add 5/21 and 2/70

5/21 + 2/70 is 4/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    5/21 = 5 × 10/21 × 10 = 50/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    2/70 = 2 × 3/70 × 3 = 6/210
  4. Add the two like fractions:
    50/210 + 6/210 = 50 + 6/210 = 56/210
  5. 56/210 simplified gives 4/15
  6. So, 5/21 + 2/70 = 4/15

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