Subtract 15/63 from 45/49
45/49 - 15/63 is 100/147.
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,
45/49 = 45 × 9/49 × 9 = 405/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
15/63 = 15 × 7/63 × 7 = 105/441 - Subtract the two like fractions:
405/441 - 105/441 = 405 - 105/441 = 300/441 - After reducing the fraction, the answer is 100/147
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