Subtract 63/84 from 21/25
21/25 - 63/84 is 9/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 25 × 84 = 2100,
21/25 = 21 × 84/25 × 84 = 1764/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
63/84 = 63 × 25/84 × 25 = 1575/2100 - Subtract the two like fractions:
1764/2100 - 1575/2100 = 1764 - 1575/2100 = 189/2100 - After reducing the fraction, the answer is 9/100
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