Subtract 8/30 from 21/9
1st number: 2 3/9, 2nd number: 8/30
21/9 - 8/30 is 31/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
21/9 = 21 × 10/9 × 10 = 210/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
8/30 = 8 × 3/30 × 3 = 24/90 - Subtract the two like fractions:
210/90 - 24/90 = 210 - 24/90 = 186/90 - After reducing the fraction, the answer is 31/15
- In mixed form: 21/15
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