Answers

Subtract 90/30 from 72/36

1^st number: 2 0/36, 2^nd number: 3 0/30

72/36 - 90/30 is -1/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 30 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 36 × 5 = 180,
   72/36 = 72 × 5/36 × 5 = 360/180
3. Likewise, for the 2nd fraction, since 30 × 6 = 180,
   90/30 = 90 × 6/30 × 6 = 540/180
4. Subtract the two like fractions:
   360/180 - 540/180 = 360 - 540/180 = -180/180
5. After reducing the fraction, the answer is -1/1

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