Answers

Subtract 50/72 from 72/90

72/90 - 50/72 is 19/180.

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,
   72/90 = 72 × 4/90 × 4 = 288/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   50/72 = 50 × 5/72 × 5 = 250/360
4. Subtract the two like fractions:
   288/360 - 250/360 = 288 - 250/360 = 38/360
5. After reducing the fraction, the answer is 19/180

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