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Add 90/72 and 1/15

1st number: 1 18/72, 2nd number: 1/15

90/72 + 1/15 is 79/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 15 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    90/72 = 90 × 5/72 × 5 = 450/360
  3. Likewise, for the 2nd fraction, since 15 × 24 = 360,
    1/15 = 1 × 24/15 × 24 = 24/360
  4. Add the two like fractions:
    450/360 + 24/360 = 450 + 24/360 = 474/360
  5. 474/360 simplified gives 79/60
  6. So, 90/72 + 1/15 = 79/60
    In mixed form: 119/60

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