Subtract 81/16 from 90/2
1st number: 45 0/2, 2nd number: 5 1/16
90/2 - 81/16 is 639/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 2 × 8 = 16,
90/2 = 90 × 8/2 × 8 = 720/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
81/16 = 81 × 1/16 × 1 = 81/16 - Subtract the two like fractions:
720/16 - 81/16 = 720 - 81/16 = 639/16 - In mixed form: 3915/16
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