Answers

Subtract 42/15 from 2/90

1^st number: 2/90, 2^nd number: 2 12/15

2/90 - 42/15 is -25/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 15 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   2/90 = 2 × 1/90 × 1 = 2/90
3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
   42/15 = 42 × 6/15 × 6 = 252/90
4. Subtract the two like fractions:
   2/90 - 252/90 = 2 - 252/90 = -250/90
5. After reducing the fraction, the answer is -25/9

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