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Add 21/60 and 2/70

21/60 + 2/70 is 53/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 60 × 7 = 420,
    21/60 = 21 × 7/60 × 7 = 147/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    2/70 = 2 × 6/70 × 6 = 12/420
  4. Add the two like fractions:
    147/420 + 12/420 = 147 + 12/420 = 159/420
  5. 159/420 simplified gives 53/140
  6. So, 21/60 + 2/70 = 53/140

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