Answers

Subtract 15/9 from 7/30

1^st number: 7/30, 2^nd number: 1 6/9

7/30 - 15/9 is -43/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 9 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 30 × 3 = 90,
   7/30 = 7 × 3/30 × 3 = 21/90
3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
   15/9 = 15 × 10/9 × 10 = 150/90
4. Subtract the two like fractions:
   21/90 - 150/90 = 21 - 150/90 = -129/90
5. After reducing the fraction, the answer is -43/30

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