Answers

Subtract 90/10 from 72/25

1^st number: 2 22/25, 2^nd number: 9 0/10

72/25 - 90/10 is -153/25.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 10 is 50
   
   Next, find the equivalent fraction of both fractional numbers with denominator 50
2. For the 1st fraction, since 25 × 2 = 50,
   72/25 = 72 × 2/25 × 2 = 144/50
3. Likewise, for the 2nd fraction, since 10 × 5 = 50,
   90/10 = 90 × 5/10 × 5 = 450/50
4. Subtract the two like fractions:
   144/50 - 450/50 = 144 - 450/50 = -306/50
5. After reducing the fraction, the answer is -153/25

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