Subtract 75/30 from 90/5
1st number: 18 0/5, 2nd number: 2 15/30
90/5 - 75/30 is 31/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
90/5 = 90 × 6/5 × 6 = 540/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
75/30 = 75 × 1/30 × 1 = 75/30 - Subtract the two like fractions:
540/30 - 75/30 = 540 - 75/30 = 465/30 - After reducing the fraction, the answer is 31/2
- In mixed form: 151/2
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