Answers

Subtract 72/27 from 90/15

1^st number: 6 0/15, 2^nd number: 2 18/27

90/15 - 72/27 is 10/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 27 is 135
   
   Next, find the equivalent fraction of both fractional numbers with denominator 135
2. For the 1st fraction, since 15 × 9 = 135,
   90/15 = 90 × 9/15 × 9 = 810/135
3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
   72/27 = 72 × 5/27 × 5 = 360/135
4. Subtract the two like fractions:
   810/135 - 360/135 = 810 - 360/135 = 450/135
5. After reducing the fraction, the answer is 10/3
6. In mixed form: 31/3

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