Subtract 9/54 from 45/42
1st number: 1 3/42, 2nd number: 9/54
45/42 - 9/54 is 19/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
45/42 = 45 × 9/42 × 9 = 405/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
9/54 = 9 × 7/54 × 7 = 63/378 - Subtract the two like fractions:
405/378 - 63/378 = 405 - 63/378 = 342/378 - After reducing the fraction, the answer is 19/21
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