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Add 7/90 and 40/20

1st number: 7/90, 2nd number: 2 0/20

7/90 + 40/20 is 187/90.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    7/90 = 7 × 2/90 × 2 = 14/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    40/20 = 40 × 9/20 × 9 = 360/180
  4. Add the two like fractions:
    14/180 + 360/180 = 14 + 360/180 = 374/180
  5. 374/180 simplified gives 187/90
  6. So, 7/90 + 40/20 = 187/90
    In mixed form: 27/90

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