Answers

Subtract 70/81 from 42/7

1^st number: 6 0/7, 2^nd number: 70/81

42/7 - 70/81 is 416/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 81 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 7 × 81 = 567,
   42/7 = 42 × 81/7 × 81 = 3402/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   70/81 = 70 × 7/81 × 7 = 490/567
4. Subtract the two like fractions:
   3402/567 - 490/567 = 3402 - 490/567 = 2912/567
5. After reducing the fraction, the answer is 416/81
6. In mixed form: 511/81

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