Answers

Subtract 36/72 from 25/90

25/90 - 36/72 is -2/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 90 × 4 = 360,
   25/90 = 25 × 4/90 × 4 = 100/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   36/72 = 36 × 5/72 × 5 = 180/360
4. Subtract the two like fractions:
   100/360 - 180/360 = 100 - 180/360 = -80/360
5. After reducing the fraction, the answer is -2/9

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