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Add 8/20 and 63/90

8/20 + 63/90 is 11/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    8/20 = 8 × 9/20 × 9 = 72/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    63/90 = 63 × 2/90 × 2 = 126/180
  4. Add the two like fractions:
    72/180 + 126/180 = 72 + 126/180 = 198/180
  5. 198/180 simplified gives 11/10
  6. So, 8/20 + 63/90 = 11/10
    In mixed form: 11/10

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