Subtract 81/35 from 21/9
1st number: 2 3/9, 2nd number: 2 11/35
21/9 - 81/35 is 2/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 9 × 35 = 315,
21/9 = 21 × 35/9 × 35 = 735/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
81/35 = 81 × 9/35 × 9 = 729/315 - Subtract the two like fractions:
735/315 - 729/315 = 735 - 729/315 = 6/315 - After reducing the fraction, the answer is 2/105
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