Answers

Subtract 10/70 from 98/90

1^st number: 1 8/90, 2^nd number: 10/70

98/90 - 10/70 is 298/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 70 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 70 × 9 = 630,
   10/70 = 10 × 9/70 × 9 = 90/630
4. Subtract the two like fractions:
   686/630 - 90/630 = 686 - 90/630 = 596/630
5. After reducing the fraction, the answer is 298/315

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