Answers

Subtract 5/70 from 3/80

3/80 - 5/70 is -19/560.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 70 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   3/80 = 3 × 7/80 × 7 = 21/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   5/70 = 5 × 8/70 × 8 = 40/560
4. Subtract the two like fractions:
   21/560 - 40/560 = 21 - 40/560 = -19/560

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