Answers

Subtract 5/42 from 98/90

1^st number: 1 8/90, 2^nd number: 5/42

98/90 - 5/42 is 611/630.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 42 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   98/90 = 98 × 7/90 × 7 = 686/630
3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
   5/42 = 5 × 15/42 × 15 = 75/630
4. Subtract the two like fractions:
   686/630 - 75/630 = 686 - 75/630 = 611/630

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