Subtract 90/8 from 21/16
1st number: 1 5/16, 2nd number: 11 2/8
21/16 - 90/8 is -159/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 8 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 16 × 1 = 16,
21/16 = 21 × 1/16 × 1 = 21/16 - Likewise, for the 2nd fraction, since 8 × 2 = 16,
90/8 = 90 × 2/8 × 2 = 180/16 - Subtract the two like fractions:
21/16 - 180/16 = 21 - 180/16 = -159/16
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