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Subtract 90/72 from 90/15

1st number: 6 0/15, 2nd number: 1 18/72

90/15 - 90/72 is 19/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 72 is 360
  2. For the 1st fraction, since 15 × 24 = 360,
    90/15 = 90 × 24/15 × 24 = 2160/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    90/72 = 90 × 5/72 × 5 = 450/360
  4. Subtract the two fractions:
    2160/360 - 450/360 = 2160 - 450/360 = 1710/360
  5. After reducing the fraction, the answer is 19/4
  6. In mixed form: 43/4

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