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Add 1/21 and 10/70

1/21 + 10/70 is 4/21.

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,
    1/21 = 1 × 10/21 × 10 = 10/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    10/70 = 10 × 3/70 × 3 = 30/210
  4. Add the two like fractions:
    10/210 + 30/210 = 10 + 30/210 = 40/210
  5. 40/210 simplified gives 4/21
  6. So, 1/21 + 10/70 = 4/21

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