Subtract 30/7 from 12/36
1st number: 12/36, 2nd number: 4 2/7
12/36 - 30/7 is -83/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
12/36 = 12 × 7/36 × 7 = 84/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
30/7 = 30 × 36/7 × 36 = 1080/252 - Subtract the two like fractions:
84/252 - 1080/252 = 84 - 1080/252 = -996/252 - After reducing the fraction, the answer is -83/21
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