Answers

Subtract 30/70 from 70/80

70/80 - 30/70 is 25/56.

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,
   70/80 = 70 × 7/80 × 7 = 490/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   30/70 = 30 × 8/70 × 8 = 240/560
4. Subtract the two like fractions:
   490/560 - 240/560 = 490 - 240/560 = 250/560
5. After reducing the fraction, the answer is 25/56

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