Subtract 84/45 from 21/25
1st number: 21/25, 2nd number: 1 39/45
21/25 - 84/45 is -77/75.
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,
84/45 = 84 × 5/45 × 5 = 420/225 - Subtract the two like fractions:
189/225 - 420/225 = 189 - 420/225 = -231/225 - After reducing the fraction, the answer is -77/75
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