Subtract 80/4 from 45/2
1st number: 22 1/2, 2nd number: 20 0/4
45/2 - 80/4 is 5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 4 is 4
Next, find the equivalent fraction of both fractional numbers with denominator 4 - For the 1st fraction, since 2 × 2 = 4,
45/2 = 45 × 2/2 × 2 = 90/4 - Likewise, for the 2nd fraction, since 4 × 1 = 4,
80/4 = 80 × 1/4 × 1 = 80/4 - Subtract the two like fractions:
90/4 - 80/4 = 90 - 80/4 = 10/4 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
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