Answers

Subtract 70/90 from 98/81

1^st number: 1 17/81, 2^nd number: 70/90

98/81 - 70/90 is 35/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 90 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 81 × 10 = 810,
   98/81 = 98 × 10/81 × 10 = 980/810
3. Likewise, for the 2nd fraction, since 90 × 9 = 810,
   70/90 = 70 × 9/90 × 9 = 630/810
4. Subtract the two like fractions:
   980/810 - 630/810 = 980 - 630/810 = 350/810
5. After reducing the fraction, the answer is 35/81

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