Answers

Subtract 20/32 from 40/70

40/70 - 20/32 is -3/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 32 is 1120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1120
2. For the 1st fraction, since 70 × 16 = 1120,
   40/70 = 40 × 16/70 × 16 = 640/1120
3. Likewise, for the 2nd fraction, since 32 × 35 = 1120,
   20/32 = 20 × 35/32 × 35 = 700/1120
4. Subtract the two like fractions:
   640/1120 - 700/1120 = 640 - 700/1120 = -60/1120
5. After reducing the fraction, the answer is -3/56

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