Answers

Subtract 35/7 from 42/81

1^st number: 42/81, 2^nd number: 5 0/7

42/81 - 35/7 is -121/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 7 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 81 × 7 = 567,
   42/81 = 42 × 7/81 × 7 = 294/567
3. Likewise, for the 2nd fraction, since 7 × 81 = 567,
   35/7 = 35 × 81/7 × 81 = 2835/567
4. Subtract the two like fractions:
   294/567 - 2835/567 = 294 - 2835/567 = -2541/567
5. After reducing the fraction, the answer is -121/27

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