Subtract 18/48 from 15/54
15/54 - 18/48 is -7/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 48 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
15/54 = 15 × 8/54 × 8 = 120/432 - Likewise, for the 2nd fraction, since 48 × 9 = 432,
18/48 = 18 × 9/48 × 9 = 162/432 - Subtract the two like fractions:
120/432 - 162/432 = 120 - 162/432 = -42/432 - After reducing the fraction, the answer is -7/72
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