Answers

Subtract 70/18 from 7/70

1^st number: 7/70, 2^nd number: 3 16/18

7/70 - 70/18 is -341/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 18 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   7/70 = 7 × 9/70 × 9 = 63/630
3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
   70/18 = 70 × 35/18 × 35 = 2450/630
4. Subtract the two like fractions:
   63/630 - 2450/630 = 63 - 2450/630 = -2387/630
5. After reducing the fraction, the answer is -341/90

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