Subtract 30/36 from 21/14
1st number: 1 7/14, 2nd number: 30/36
21/14 - 30/36 is 2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 14 × 18 = 252,
21/14 = 21 × 18/14 × 18 = 378/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
30/36 = 30 × 7/36 × 7 = 210/252 - Subtract the two like fractions:
378/252 - 210/252 = 378 - 210/252 = 168/252 - After reducing the fraction, the answer is 2/3
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