Subtract 20/16 from 90/5
1st number: 18 0/5, 2nd number: 1 4/16
90/5 - 20/16 is 67/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
90/5 = 90 × 16/5 × 16 = 1440/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
20/16 = 20 × 5/16 × 5 = 100/80 - Subtract the two like fractions:
1440/80 - 100/80 = 1440 - 100/80 = 1340/80 - After reducing the fraction, the answer is 67/4
- In mixed form: 163/4
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