Subtract 9/28 from 21/9
1st number: 2 3/9, 2nd number: 9/28
21/9 - 9/28 is 169/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
21/9 = 21 × 28/9 × 28 = 588/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
9/28 = 9 × 9/28 × 9 = 81/252 - Subtract the two like fractions:
588/252 - 81/252 = 588 - 81/252 = 507/252 - After reducing the fraction, the answer is 169/84
- In mixed form: 21/84
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