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Add 27/20 and 90/63

1st number: 1 7/20, 2nd number: 1 27/63

27/20 + 90/63 is 389/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 63 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 20 × 63 = 1260,
    27/20 = 27 × 63/20 × 63 = 1701/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    90/63 = 90 × 20/63 × 20 = 1800/1260
  4. Add the two like fractions:
    1701/1260 + 1800/1260 = 1701 + 1800/1260 = 3501/1260
  5. 3501/1260 simplified gives 389/140
  6. So, 27/20 + 90/63 = 389/140
    In mixed form: 2109/140

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