Subtract 50/45 from 81/18
1st number: 4 9/18, 2nd number: 1 5/45
81/18 - 50/45 is 61/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 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 45 × 2 = 90,
50/45 = 50 × 2/45 × 2 = 100/90 - Subtract the two like fractions:
405/90 - 100/90 = 405 - 100/90 = 305/90 - After reducing the fraction, the answer is 61/18
- In mixed form: 37/18
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