Subtract 49/54 from 42/48
42/48 - 49/54 is -7/216.
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,
42/48 = 42 × 9/48 × 9 = 378/432 - Likewise, for the 2nd fraction, since 54 × 8 = 432,
49/54 = 49 × 8/54 × 8 = 392/432 - Subtract the two like fractions:
378/432 - 392/432 = 378 - 392/432 = -14/432 - After reducing the fraction, the answer is -7/216
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