Subtract 40/81 from 35/2
1st number: 17 1/2, 2nd number: 40/81
35/2 - 40/81 is 2755/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
35/2 = 35 × 81/2 × 81 = 2835/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
40/81 = 40 × 2/81 × 2 = 80/162 - Subtract the two like fractions:
2835/162 - 80/162 = 2835 - 80/162 = 2755/162 - In mixed form: 171/162
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