Answers

Subtract 42/64 from 30/56

30/56 - 42/64 is -27/224.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 64 is 448
   
   Next, find the equivalent fraction of both fractional numbers with denominator 448
2. For the 1st fraction, since 56 × 8 = 448,
   30/56 = 30 × 8/56 × 8 = 240/448
3. Likewise, for the 2nd fraction, since 64 × 7 = 448,
   42/64 = 42 × 7/64 × 7 = 294/448
4. Subtract the two like fractions:
   240/448 - 294/448 = 240 - 294/448 = -54/448
5. After reducing the fraction, the answer is -27/224

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