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Add 60/90 and 15/21

60/90 + 15/21 is 29/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 21 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    60/90 = 60 × 7/90 × 7 = 420/630
  3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
    15/21 = 15 × 30/21 × 30 = 450/630
  4. Add the two like fractions:
    420/630 + 450/630 = 420 + 450/630 = 870/630
  5. 870/630 simplified gives 29/21
  6. So, 60/90 + 15/21 = 29/21
    In mixed form: 18/21

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