Subtract 63/45 from 90/75
1st number: 1 15/75, 2nd number: 1 18/45
90/75 - 63/45 is -1/5.
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,
90/75 = 90 × 3/75 × 3 = 270/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
63/45 = 63 × 5/45 × 5 = 315/225 - Subtract the two like fractions:
270/225 - 315/225 = 270 - 315/225 = -45/225 - After reducing the fraction, the answer is -1/5
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Related: 90/75-63/90