Answers

Subtract 8/30 from 25/42

25/42 - 8/30 is 23/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   25/42 = 25 × 5/42 × 5 = 125/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   8/30 = 8 × 7/30 × 7 = 56/210
4. Subtract the two like fractions:
   125/210 - 56/210 = 125 - 56/210 = 69/210
5. After reducing the fraction, the answer is 23/70

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