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Add 35/40 and 8/21

35/40 + 8/21 is 211/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 21 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    35/40 = 35 × 21/40 × 21 = 735/840
  3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
    8/21 = 8 × 40/21 × 40 = 320/840
  4. Add the two like fractions:
    735/840 + 320/840 = 735 + 320/840 = 1055/840
  5. 1055/840 simplified gives 211/168
  6. So, 35/40 + 8/21 = 211/168
    In mixed form: 143/168

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