Subtract 9/10 from 90/20
1st number: 4 10/20, 2nd number: 9/10
90/20 - 9/10 is 18/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
90/20 = 90 × 1/20 × 1 = 90/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
9/10 = 9 × 2/10 × 2 = 18/20 - Subtract the two like fractions:
90/20 - 18/20 = 90 - 18/20 = 72/20 - After reducing the fraction, the answer is 18/5
- In mixed form: 33/5
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