Subtract 21/14 from 45/36
1st number: 1 9/36, 2nd number: 1 7/14
45/36 - 21/14 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 14 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
45/36 = 45 × 7/36 × 7 = 315/252 - Likewise, for the 2nd fraction, since 14 × 18 = 252,
21/14 = 21 × 18/14 × 18 = 378/252 - Subtract the two like fractions:
315/252 - 378/252 = 315 - 378/252 = -63/252 - After reducing the fraction, the answer is -1/4
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