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Add 20/72 and 7/5

1st number: 20/72, 2nd number: 1 2/5

20/72 + 7/5 is 151/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 5 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    20/72 = 20 × 5/72 × 5 = 100/360
  3. Likewise, for the 2nd fraction, since 5 × 72 = 360,
    7/5 = 7 × 72/5 × 72 = 504/360
  4. Add the two like fractions:
    100/360 + 504/360 = 100 + 504/360 = 604/360
  5. 604/360 simplified gives 151/90
  6. So, 20/72 + 7/5 = 151/90
    In mixed form: 161/90

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