Answers

Subtract 54/7 from 27/80

1^st number: 27/80, 2^nd number: 7 5/7

27/80 - 54/7 is -4131/560.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 7 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   27/80 = 27 × 7/80 × 7 = 189/560
3. Likewise, for the 2nd fraction, since 7 × 80 = 560,
   54/7 = 54 × 80/7 × 80 = 4320/560
4. Subtract the two like fractions:
   189/560 - 4320/560 = 189 - 4320/560 = -4131/560

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