Subtract 81/45 from 20/6
1st number: 3 2/6, 2nd number: 1 36/45
20/6 - 81/45 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
20/6 = 20 × 15/6 × 15 = 300/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
81/45 = 81 × 2/45 × 2 = 162/90 - Subtract the two like fractions:
300/90 - 162/90 = 300 - 162/90 = 138/90 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
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