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Add 36/90 and 15/21

36/90 + 15/21 is 39/35.

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,
    36/90 = 36 × 7/90 × 7 = 252/630
  3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
    15/21 = 15 × 30/21 × 30 = 450/630
  4. Add the two like fractions:
    252/630 + 450/630 = 252 + 450/630 = 702/630
  5. 702/630 simplified gives 39/35
  6. So, 36/90 + 15/21 = 39/35
    In mixed form: 14/35

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