Answers

Subtract 20/70 from 35/64

35/64 - 20/70 is 117/448.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 70 is 2240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2240
2. For the 1st fraction, since 64 × 35 = 2240,
   35/64 = 35 × 35/64 × 35 = 1225/2240
3. Likewise, for the 2nd fraction, since 70 × 32 = 2240,
   20/70 = 20 × 32/70 × 32 = 640/2240
4. Subtract the two like fractions:
   1225/2240 - 640/2240 = 1225 - 640/2240 = 585/2240
5. After reducing the fraction, the answer is 117/448

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