Answers

Subtract 63/80 from 6/70

6/70 - 63/80 is -393/560.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   6/70 = 6 × 8/70 × 8 = 48/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   63/80 = 63 × 7/80 × 7 = 441/560
4. Subtract the two like fractions:
   48/560 - 441/560 = 48 - 441/560 = -393/560

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