Subtract 12/63 from 42/49
42/49 - 12/63 is 2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
42/49 = 42 × 9/49 × 9 = 378/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
12/63 = 12 × 7/63 × 7 = 84/441 - Subtract the two like fractions:
378/441 - 84/441 = 378 - 84/441 = 294/441 - After reducing the fraction, the answer is 2/3
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