Subtract 50/90 from 81/18
1st number: 4 9/18, 2nd number: 50/90
81/18 - 50/90 is 71/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
81/18 = 81 × 5/18 × 5 = 405/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
50/90 = 50 × 1/90 × 1 = 50/90 - Subtract the two like fractions:
405/90 - 50/90 = 405 - 50/90 = 355/90 - After reducing the fraction, the answer is 71/18
- In mixed form: 317/18
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