Subtract 21/36 from 30/2
1st number: 15 0/2, 2nd number: 21/36
30/2 - 21/36 is 173/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 2 × 18 = 36,
30/2 = 30 × 18/2 × 18 = 540/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Subtract the two like fractions:
540/36 - 21/36 = 540 - 21/36 = 519/36 - After reducing the fraction, the answer is 173/12
- In mixed form: 145/12
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