Subtract 21/9 from 2/10
1st number: 2/10, 2nd number: 2 3/9
2/10 - 21/9 is -32/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
2/10 = 2 × 9/10 × 9 = 18/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
21/9 = 21 × 10/9 × 10 = 210/90 - Subtract the two like fractions:
18/90 - 210/90 = 18 - 210/90 = -192/90 - After reducing the fraction, the answer is -32/15
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