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Add 49/63 and 21/90

49/63 + 21/90 is 91/90.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 63 × 10 = 630,
    49/63 = 49 × 10/63 × 10 = 490/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    21/90 = 21 × 7/90 × 7 = 147/630
  4. Add the two like fractions:
    490/630 + 147/630 = 490 + 147/630 = 637/630
  5. 637/630 simplified gives 91/90
  6. So, 49/63 + 21/90 = 91/90
    In mixed form: 11/90

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