Subtract 9/90 from 80/30
1st number: 2 20/30, 2nd number: 9/90
80/30 - 9/90 is 77/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
80/30 = 80 × 3/30 × 3 = 240/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Subtract the two like fractions:
240/90 - 9/90 = 240 - 9/90 = 231/90 - After reducing the fraction, the answer is 77/30
- In mixed form: 217/30
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