Answers

Subtract 4/64 from 20/70

20/70 - 4/64 is 25/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 64 is 2240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2240
2. For the 1st fraction, since 70 × 32 = 2240,
   20/70 = 20 × 32/70 × 32 = 640/2240
3. Likewise, for the 2nd fraction, since 64 × 35 = 2240,
   4/64 = 4 × 35/64 × 35 = 140/2240
4. Subtract the two like fractions:
   640/2240 - 140/2240 = 640 - 140/2240 = 500/2240
5. After reducing the fraction, the answer is 25/112

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