Answers

Subtract 45/42 from 16/15

1^st number: 1 1/15, 2^nd number: 1 3/42

16/15 - 45/42 is -1/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   16/15 = 16 × 14/15 × 14 = 224/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   45/42 = 45 × 5/42 × 5 = 225/210
4. Subtract the two like fractions:
   224/210 - 225/210 = 224 - 225/210 = -1/210

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