Subtract 25/54 from 21/48
21/48 - 25/54 is -11/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 54 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 48 × 9 = 432,
21/48 = 21 × 9/48 × 9 = 189/432 - Likewise, for the 2nd fraction, since 54 × 8 = 432,
25/54 = 25 × 8/54 × 8 = 200/432 - Subtract the two like fractions:
189/432 - 200/432 = 189 - 200/432 = -11/432
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