Subtract 90/75 from 45/20
1st number: 2 5/20, 2nd number: 1 15/75
45/20 - 90/75 is 21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
45/20 = 45 × 15/20 × 15 = 675/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
90/75 = 90 × 4/75 × 4 = 360/300 - Subtract the two like fractions:
675/300 - 360/300 = 675 - 360/300 = 315/300 - After reducing the fraction, the answer is 21/20
- In mixed form: 11/20
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