Subtract 21/3 from 9/30
1st number: 9/30, 2nd number: 7 0/3
9/30 - 21/3 is -67/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
9/30 = 9 × 1/30 × 1 = 9/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
21/3 = 21 × 10/3 × 10 = 210/30 - Subtract the two like fractions:
9/30 - 210/30 = 9 - 210/30 = -201/30 - After reducing the fraction, the answer is -67/10
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