Answers

Subtract 12/7 from 5/3

1^st number: 1 2/3, 2^nd number: 1 5/7

5/3 - 12/7 is -1/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 7 is 21
   
   Next, find the equivalent fraction of both fractional numbers with denominator 21
2. For the 1st fraction, since 3 × 7 = 21,
   5/3 = 5 × 7/3 × 7 = 35/21
3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
   12/7 = 12 × 3/7 × 3 = 36/21
4. Subtract the two like fractions:
   35/21 - 36/21 = 35 - 36/21 = -1/21

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