Answers

Subtract 7/81 from 42/28

1^st number: 1 14/28, 2^nd number: 7/81

42/28 - 7/81 is 229/162.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 81 is 2268
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2268
2. For the 1st fraction, since 28 × 81 = 2268,
   42/28 = 42 × 81/28 × 81 = 3402/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   7/81 = 7 × 28/81 × 28 = 196/2268
4. Subtract the two like fractions:
   3402/2268 - 196/2268 = 3402 - 196/2268 = 3206/2268
5. After reducing the fraction, the answer is 229/162
6. In mixed form: 167/162

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