Subtract 81/30 from 20/6
1st number: 3 2/6, 2nd number: 2 21/30
20/6 - 81/30 is 19/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
20/6 = 20 × 5/6 × 5 = 100/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
81/30 = 81 × 1/30 × 1 = 81/30 - Subtract the two like fractions:
100/30 - 81/30 = 100 - 81/30 = 19/30
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