Subtract 75/45 from 21/25
1st number: 21/25, 2nd number: 1 30/45
21/25 - 75/45 is -62/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
21/25 = 21 × 9/25 × 9 = 189/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
75/45 = 75 × 5/45 × 5 = 375/225 - Subtract the two like fractions:
189/225 - 375/225 = 189 - 375/225 = -186/225 - After reducing the fraction, the answer is -62/75
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