Answers

Subtract 7/45 from 9/18

9/18 - 7/45 is 31/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   9/18 = 9 × 5/18 × 5 = 45/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   7/45 = 7 × 2/45 × 2 = 14/90
4. Subtract the two like fractions:
   45/90 - 14/90 = 45 - 14/90 = 31/90

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