Answers

Subtract 10/81 from 70/63

1^st number: 1 7/63, 2^nd number: 10/81

70/63 - 10/81 is 80/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 81 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 63 × 9 = 567,
   70/63 = 70 × 9/63 × 9 = 630/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   10/81 = 10 × 7/81 × 7 = 70/567
4. Subtract the two like fractions:
   630/567 - 70/567 = 630 - 70/567 = 560/567
5. After reducing the fraction, the answer is 80/81

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