Answers

Subtract 21/32 from 7/18

7/18 - 21/32 is -77/288.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 32 is 288
   
   Next, find the equivalent fraction of both fractional numbers with denominator 288
2. For the 1st fraction, since 18 × 16 = 288,
   7/18 = 7 × 16/18 × 16 = 112/288
3. Likewise, for the 2nd fraction, since 32 × 9 = 288,
   21/32 = 21 × 9/32 × 9 = 189/288
4. Subtract the two like fractions:
   112/288 - 189/288 = 112 - 189/288 = -77/288

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