Subtract 90/75 from 3/12
1st number: 3/12, 2nd number: 1 15/75
3/12 - 90/75 is -19/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
3/12 = 3 × 25/12 × 25 = 75/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
90/75 = 90 × 4/75 × 4 = 360/300 - Subtract the two like fractions:
75/300 - 360/300 = 75 - 360/300 = -285/300 - After reducing the fraction, the answer is -19/20
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