Subtract 81/10 from 63/4
1st number: 15 3/4, 2nd number: 8 1/10
63/4 - 81/10 is 153/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
63/4 = 63 × 5/4 × 5 = 315/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
81/10 = 81 × 2/10 × 2 = 162/20 - Subtract the two like fractions:
315/20 - 162/20 = 315 - 162/20 = 153/20 - In mixed form: 713/20
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