Answers

Subtract 27/80 from 1/7

1/7 - 27/80 is -109/560.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 7 × 80 = 560,
   1/7 = 1 × 80/7 × 80 = 80/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   27/80 = 27 × 7/80 × 7 = 189/560
4. Subtract the two like fractions:
   80/560 - 189/560 = 80 - 189/560 = -109/560

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