Subtract 9/21 from 25/2
1st number: 12 1/2, 2nd number: 9/21
25/2 - 9/21 is 169/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
25/2 = 25 × 21/2 × 21 = 525/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
9/21 = 9 × 2/21 × 2 = 18/42 - Subtract the two like fractions:
525/42 - 18/42 = 525 - 18/42 = 507/42 - After reducing the fraction, the answer is 169/14
- In mixed form: 121/14
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