Subtract 42/49 from 15/9
1st number: 1 6/9, 2nd number: 42/49
15/9 - 42/49 is 17/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
15/9 = 15 × 49/9 × 49 = 735/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
42/49 = 42 × 9/49 × 9 = 378/441 - Subtract the two like fractions:
735/441 - 378/441 = 735 - 378/441 = 357/441 - After reducing the fraction, the answer is 17/21
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