Subtract 12/54 from 63/42
1st number: 1 21/42, 2nd number: 12/54
63/42 - 12/54 is 23/18.
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,
63/42 = 63 × 9/42 × 9 = 567/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
12/54 = 12 × 7/54 × 7 = 84/378 - Subtract the two like fractions:
567/378 - 84/378 = 567 - 84/378 = 483/378 - After reducing the fraction, the answer is 23/18
- In mixed form: 15/18
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