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Add 50/90 and 21/63

50/90 + 21/63 is 8/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 63 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    50/90 = 50 × 7/90 × 7 = 350/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    21/63 = 21 × 10/63 × 10 = 210/630
  4. Add the two like fractions:
    350/630 + 210/630 = 350 + 210/630 = 560/630
  5. 560/630 simplified gives 8/9
  6. So, 50/90 + 21/63 = 8/9

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