Answers

Subtract 8/70 from 42/80

42/80 - 8/70 is 23/56.

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,
   42/80 = 42 × 7/80 × 7 = 294/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   8/70 = 8 × 8/70 × 8 = 64/560
4. Subtract the two like fractions:
   294/560 - 64/560 = 294 - 64/560 = 230/560
5. After reducing the fraction, the answer is 23/56

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