Subtract 90/45 from 45/75
1st number: 45/75, 2nd number: 2 0/45
45/75 - 90/45 is -7/5.
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,
45/75 = 45 × 3/75 × 3 = 135/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
90/45 = 90 × 5/45 × 5 = 450/225 - Subtract the two like fractions:
135/225 - 450/225 = 135 - 450/225 = -315/225 - After reducing the fraction, the answer is -7/5
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Related: 90/75-90/45