Subtract 90/16 from 21/2
1st number: 10 1/2, 2nd number: 5 10/16
21/2 - 90/16 is 39/8.
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,
21/2 = 21 × 8/2 × 8 = 168/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
90/16 = 90 × 1/16 × 1 = 90/16 - Subtract the two like fractions:
168/16 - 90/16 = 168 - 90/16 = 78/16 - After reducing the fraction, the answer is 39/8
- In mixed form: 47/8
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