Subtract 20/25 from 21/9
1st number: 2 3/9, 2nd number: 20/25
21/9 - 20/25 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 9 × 25 = 225,
21/9 = 21 × 25/9 × 25 = 525/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
20/25 = 20 × 9/25 × 9 = 180/225 - Subtract the two like fractions:
525/225 - 180/225 = 525 - 180/225 = 345/225 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
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