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Add 20/90 and 98/72

1st number: 20/90, 2nd number: 1 26/72

20/90 + 98/72 is 19/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    20/90 = 20 × 4/90 × 4 = 80/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    98/72 = 98 × 5/72 × 5 = 490/360
  4. Add the two like fractions:
    80/360 + 490/360 = 80 + 490/360 = 570/360
  5. 570/360 simplified gives 19/12
  6. So, 20/90 + 98/72 = 19/12
    In mixed form: 17/12

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