Subtract 45/90 from 18/6
1st number: 3 0/6, 2nd number: 45/90
18/6 - 45/90 is 5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
18/6 = 18 × 15/6 × 15 = 270/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
45/90 = 45 × 1/90 × 1 = 45/90 - Subtract the two like fractions:
270/90 - 45/90 = 270 - 45/90 = 225/90 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
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