Subtract 81/10 from 63/18
1st number: 3 9/18, 2nd number: 8 1/10
63/18 - 81/10 is -23/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
81/10 = 81 × 9/10 × 9 = 729/90 - Subtract the two like fractions:
315/90 - 729/90 = 315 - 729/90 = -414/90 - After reducing the fraction, the answer is -23/5
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