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Add 3/10 and 12/45

3/10 + 12/45 is 17/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 45 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    3/10 = 3 × 9/10 × 9 = 27/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    12/45 = 12 × 2/45 × 2 = 24/90
  4. Add the two like fractions:
    27/90 + 24/90 = 27 + 24/90 = 51/90
  5. 51/90 simplified gives 17/30
  6. So, 3/10 + 12/45 = 17/30

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