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Add 20/80 and 90/63

1st number: 20/80, 2nd number: 1 27/63

20/80 + 90/63 is 47/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 63 is 5040

    Next, find the equivalent fraction of both fractional numbers with denominator 5040
  2. For the 1st fraction, since 80 × 63 = 5040,
    20/80 = 20 × 63/80 × 63 = 1260/5040
  3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
    90/63 = 90 × 80/63 × 80 = 7200/5040
  4. Add the two like fractions:
    1260/5040 + 7200/5040 = 1260 + 7200/5040 = 8460/5040
  5. 8460/5040 simplified gives 47/28
  6. So, 20/80 + 90/63 = 47/28
    In mixed form: 119/28

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