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Add 21/36 and 6/70

21/36 + 6/70 is 281/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 70 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 36 × 35 = 1260,
    21/36 = 21 × 35/36 × 35 = 735/1260
  3. Likewise, for the 2nd fraction, since 70 × 18 = 1260,
    6/70 = 6 × 18/70 × 18 = 108/1260
  4. Add the two like fractions:
    735/1260 + 108/1260 = 735 + 108/1260 = 843/1260
  5. 843/1260 simplified gives 281/420
  6. So, 21/36 + 6/70 = 281/420

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