Subtract 28/32 from 20/25
20/25 - 28/32 is -3/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 32 is 800
Next, find the equivalent fraction of both fractional numbers with denominator 800 - For the 1st fraction, since 25 × 32 = 800,
20/25 = 20 × 32/25 × 32 = 640/800 - Likewise, for the 2nd fraction, since 32 × 25 = 800,
28/32 = 28 × 25/32 × 25 = 700/800 - Subtract the two like fractions:
640/800 - 700/800 = 640 - 700/800 = -60/800 - After reducing the fraction, the answer is -3/40
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