Subtract 45/36 from 6/21
1st number: 6/21, 2nd number: 1 9/36
6/21 - 45/36 is -27/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
6/21 = 6 × 12/21 × 12 = 72/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
45/36 = 45 × 7/36 × 7 = 315/252 - Subtract the two like fractions:
72/252 - 315/252 = 72 - 315/252 = -243/252 - After reducing the fraction, the answer is -27/28
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