Subtract 20/32 from 8/9
8/9 - 20/32 is 19/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 9 × 32 = 288,
8/9 = 8 × 32/9 × 32 = 256/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
20/32 = 20 × 9/32 × 9 = 180/288 - Subtract the two like fractions:
256/288 - 180/288 = 256 - 180/288 = 76/288 - After reducing the fraction, the answer is 19/72
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