Subtract 16/20 from 8/9
8/9 - 16/20 is 4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
8/9 = 8 × 20/9 × 20 = 160/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
16/20 = 16 × 9/20 × 9 = 144/180 - Subtract the two like fractions:
160/180 - 144/180 = 160 - 144/180 = 16/180 - After reducing the fraction, the answer is 4/45
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