Answers

Subtract 2/80 from 20/70

20/70 - 2/80 is 73/280.

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,
   20/70 = 20 × 8/70 × 8 = 160/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   2/80 = 2 × 7/80 × 7 = 14/560
4. Subtract the two like fractions:
   160/560 - 14/560 = 160 - 14/560 = 146/560
5. After reducing the fraction, the answer is 73/280

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