Subtract 81/4 from 56/9
1st number: 6 2/9, 2nd number: 20 1/4
56/9 - 81/4 is -505/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
56/9 = 56 × 4/9 × 4 = 224/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
81/4 = 81 × 9/4 × 9 = 729/36 - Subtract the two like fractions:
224/36 - 729/36 = 224 - 729/36 = -505/36
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