Subtract 40/21 from 9/25
1st number: 9/25, 2nd number: 1 19/21
9/25 - 40/21 is -811/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
9/25 = 9 × 21/25 × 21 = 189/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
40/21 = 40 × 25/21 × 25 = 1000/525 - Subtract the two like fractions:
189/525 - 1000/525 = 189 - 1000/525 = -811/525
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