Subtract 25/50 from 18/84
18/84 - 25/50 is -2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 50 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
18/84 = 18 × 25/84 × 25 = 450/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
25/50 = 25 × 42/50 × 42 = 1050/2100 - Subtract the two like fractions:
450/2100 - 1050/2100 = 450 - 1050/2100 = -600/2100 - After reducing the fraction, the answer is -2/7
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