Subtract 90/45 from 15/75
1st number: 15/75, 2nd number: 2 0/45
15/75 - 90/45 is -9/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
15/75 = 15 × 3/75 × 3 = 45/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
90/45 = 90 × 5/45 × 5 = 450/225 - Subtract the two like fractions:
45/225 - 450/225 = 45 - 450/225 = -405/225 - After reducing the fraction, the answer is -9/5
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