Subtract 20/28 from 18/25
18/25 - 20/28 is 1/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 28 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 25 × 28 = 700,
18/25 = 18 × 28/25 × 28 = 504/700 - Likewise, for the 2nd fraction, since 28 × 25 = 700,
20/28 = 20 × 25/28 × 25 = 500/700 - Subtract the two like fractions:
504/700 - 500/700 = 504 - 500/700 = 4/700 - After reducing the fraction, the answer is 1/175
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