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Add 21/70 and 20/24

21/70 + 20/24 is 17/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 24 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 70 × 12 = 840,
    21/70 = 21 × 12/70 × 12 = 252/840
  3. Likewise, for the 2nd fraction, since 24 × 35 = 840,
    20/24 = 20 × 35/24 × 35 = 700/840
  4. Add the two like fractions:
    252/840 + 700/840 = 252 + 700/840 = 952/840
  5. 952/840 simplified gives 17/15
  6. So, 21/70 + 20/24 = 17/15
    In mixed form: 12/15

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