Answers

Subtract 98/50 from 42/90

1^st number: 42/90, 2^nd number: 1 48/50

42/90 - 98/50 is -112/75.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 50 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 90 × 5 = 450,
   42/90 = 42 × 5/90 × 5 = 210/450
3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
   98/50 = 98 × 9/50 × 9 = 882/450
4. Subtract the two like fractions:
   210/450 - 882/450 = 210 - 882/450 = -672/450
5. After reducing the fraction, the answer is -112/75

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