Answers

Subtract 75/70 from 1/84

1^st number: 1/84, 2^nd number: 1 5/70

1/84 - 75/70 is -89/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   1/84 = 1 × 5/84 × 5 = 5/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   75/70 = 75 × 6/70 × 6 = 450/420
4. Subtract the two like fractions:
   5/420 - 450/420 = 5 - 450/420 = -445/420
5. After reducing the fraction, the answer is -89/84

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