Answers

Subtract 42/64 from 30/40

30/40 - 42/64 is 3/32.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 64 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 40 × 8 = 320,
   30/40 = 30 × 8/40 × 8 = 240/320
3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
   42/64 = 42 × 5/64 × 5 = 210/320
4. Subtract the two like fractions:
   240/320 - 210/320 = 240 - 210/320 = 30/320
5. After reducing the fraction, the answer is 3/32

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