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Add 20/90 and 30/4

1st number: 20/90, 2nd number: 7 2/4

20/90 + 30/4 is 139/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 4 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    20/90 = 20 × 2/90 × 2 = 40/180
  3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
    30/4 = 30 × 45/4 × 45 = 1350/180
  4. Add the two like fractions:
    40/180 + 1350/180 = 40 + 1350/180 = 1390/180
  5. 1390/180 simplified gives 139/18
  6. So, 20/90 + 30/4 = 139/18
    In mixed form: 713/18

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