Answers

Subtract 18/45 from 90/50

1^st number: 1 40/50, 2^nd number: 18/45

90/50 - 18/45 is 7/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 45 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 50 × 9 = 450,
   90/50 = 90 × 9/50 × 9 = 810/450
3. Likewise, for the 2nd fraction, since 45 × 10 = 450,
   18/45 = 18 × 10/45 × 10 = 180/450
4. Subtract the two like fractions:
   810/450 - 180/450 = 810 - 180/450 = 630/450
5. After reducing the fraction, the answer is 7/5
6. In mixed form: 12/5

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